1 00:00:00,000 --> 00:00:10,600 Is a Russian nuclear sub on a secret spying mission when a deadly fire breaks out? 2 00:00:10,600 --> 00:00:15,560 This kind of sabotage would bring the Western world to its knees. 3 00:00:15,560 --> 00:00:21,560 Can cutting-edge forensic technology reveal the identity of human remains buried in an 4 00:00:21,560 --> 00:00:24,280 eerie Scandinavian lake? 5 00:00:24,280 --> 00:00:29,880 There were so many of them, it obviously could not be a single murder. 6 00:00:29,880 --> 00:00:35,720 And what can explain a bizarre toxic haze hitting England's beaches? 7 00:00:35,720 --> 00:00:42,200 A day of fun at the beach turns into a nightmare. 8 00:00:42,200 --> 00:00:46,760 The underwater realm is another dimension. 9 00:00:46,760 --> 00:00:56,800 It's a physically hostile place, where dreams of promise can sink into darkness. 10 00:00:56,800 --> 00:01:02,520 I'm Jeremy Wade, and I'm searching the world to bring you the most iconic and baffling 11 00:01:02,520 --> 00:01:06,960 underwater mysteries known to science. 12 00:01:06,960 --> 00:01:13,040 The vast majority of our ocean is unobserved, unmapped and unexplored. 13 00:01:13,040 --> 00:01:18,160 It's a dangerous frontier that swallows evidence. 14 00:01:18,160 --> 00:01:20,760 You have nowhere to run. 15 00:01:20,760 --> 00:01:24,040 Where unknown is normal. 16 00:01:24,040 --> 00:01:37,600 And understanding is rare. 17 00:01:37,600 --> 00:01:41,680 We think of the internet as something that exists in the cloud. 18 00:01:41,680 --> 00:01:47,960 But incredibly, 99.5% of it is located at the bottom of the ocean. 19 00:01:47,960 --> 00:01:55,680 Email, banking data and top secret intel all transported by a vast network of underwater 20 00:01:55,680 --> 00:01:56,680 cables. 21 00:01:56,680 --> 00:02:03,200 So when a mysterious Russian spy submarine catches fire in the Arctic Ocean, tragically 22 00:02:03,200 --> 00:02:11,280 killing most of her crew, it brings to light how vulnerable these cables might be to sabotage. 23 00:02:11,280 --> 00:02:16,320 Do subs like this have the capability to cripple the Western world? 24 00:02:16,320 --> 00:02:26,320 And if so, will we be ready and able to stop them? 25 00:02:26,320 --> 00:02:29,120 July 1st, 2019. 26 00:02:29,120 --> 00:02:34,920 A Russian nuclear-powered submarine emerges discreetly in the port of Severa Mosk on the 27 00:02:34,920 --> 00:02:36,800 Kola Peninsula. 28 00:02:36,800 --> 00:02:39,960 The vessel is in a state of emergency. 29 00:02:39,960 --> 00:02:45,920 The submarine is badly damaged after catching fire in the Barents Sea. 30 00:02:45,920 --> 00:02:50,440 There are reports that up to 14 people have died. 31 00:02:50,440 --> 00:02:55,440 This is Russia's deadliest submarine accident in over a decade. 32 00:02:55,440 --> 00:03:02,360 This sub is Russia's most secret naval asset, and any information about it is classified. 33 00:03:02,360 --> 00:03:09,040 Russian authorities are very reluctant to talk about their military operations. 34 00:03:09,040 --> 00:03:13,680 Moscow's silence raises suspicion all over the world. 35 00:03:13,680 --> 00:03:19,800 The question everyone wants to know, what was this nuclear sub up to when the accident 36 00:03:19,800 --> 00:03:23,160 happened? 37 00:03:23,160 --> 00:03:25,160 Details are scarce. 38 00:03:25,160 --> 00:03:29,160 The Russian Ministry of Defence doesn't name the submarine and actually says it's a state 39 00:03:29,160 --> 00:03:31,200 secret. 40 00:03:31,200 --> 00:03:36,760 The response prompts accusations of a cover-up and a lack of transparency that draws parallels 41 00:03:36,760 --> 00:03:41,440 with past nuclear disasters. 42 00:03:41,440 --> 00:03:46,640 In the 1980s, with the Chernobyl incident, the Russian government stayed silent for 43 00:03:46,640 --> 00:03:48,880 over three days. 44 00:03:48,880 --> 00:03:55,640 And it echoes another well-known tragic nuclear sub-accident, the Kursk. 45 00:03:55,640 --> 00:04:04,440 Where 118 Russian submariners died, the Russian government stayed silent for over two days. 46 00:04:04,440 --> 00:04:12,200 In 2019, will this tragedy also be shrouded in mystery? 47 00:04:12,200 --> 00:04:17,240 A day after the incident, the Ministry of Defence does let slip one piece of intriguing 48 00:04:17,240 --> 00:04:19,240 information. 49 00:04:19,240 --> 00:04:24,320 The Russian Ministry of Defence said the submarine was mapping the sea floor. 50 00:04:24,320 --> 00:04:29,520 Ocean mapping is a classic cover for top-secret underwater missions. 51 00:04:29,520 --> 00:04:32,840 Is that the case here? 52 00:04:32,840 --> 00:04:38,360 The identities of the 14 deceased submariners are released to the public. 53 00:04:38,360 --> 00:04:41,640 And it's a bombshell revelation. 54 00:04:41,640 --> 00:04:45,000 These weren't your usual Russian submarine personnel. 55 00:04:45,000 --> 00:04:48,400 These were the elite of the Russian submarine service. 56 00:04:48,400 --> 00:04:51,400 So much so, they had their own name. 57 00:04:51,400 --> 00:04:55,760 They were called the hydronauts. 58 00:04:55,760 --> 00:04:58,080 They were very high-ranking. 59 00:04:58,080 --> 00:05:04,600 This indicates that there was a special mission that required their presence on board. 60 00:05:04,600 --> 00:05:11,120 You can rebuild a submarine far easier than you can build experienced crew. 61 00:05:11,120 --> 00:05:16,760 So losing the crew, that's a loss of a tremendous asset. 62 00:05:16,760 --> 00:05:22,280 The presence of the hydronauts could throw doubt on the claim that the sub was only mapping 63 00:05:22,280 --> 00:05:23,880 the sea floor. 64 00:05:23,880 --> 00:05:27,240 Was its mission more ominous? 65 00:05:27,280 --> 00:05:35,000 A Russian news channel identifies the mysterious submarine as the AS-31 Losharyk. 66 00:05:35,000 --> 00:05:38,400 The Losharyk is a top-secret submersible. 67 00:05:38,400 --> 00:05:43,800 It belongs to the Intelligence Research and Development Organization. 68 00:05:43,800 --> 00:05:50,040 Its last known location was only 16-autical miles east of Norway. 69 00:05:50,040 --> 00:05:54,120 What was it doing so suspiciously close to a foreign coastline? 70 00:05:57,320 --> 00:06:01,880 At the time of the accident, there was actually a NATO exercise taking place in the Norwegian 71 00:06:01,880 --> 00:06:03,840 Sea. 72 00:06:03,840 --> 00:06:10,200 Submarines from France, Germany, Norway, the UK and the United States are all there on 73 00:06:10,200 --> 00:06:12,760 this training mission. 74 00:06:12,760 --> 00:06:16,680 They have one country in mind, Russia. 75 00:06:16,680 --> 00:06:21,200 Is it merely a coincidence that this ship enters these waters during such an important 76 00:06:21,200 --> 00:06:23,880 NATO training exercise? 77 00:06:23,880 --> 00:06:27,680 What's the Losharyk spying on these maneuvers? 78 00:06:27,680 --> 00:06:35,840 Literally a goldmine of information being put out there during these training exercises. 79 00:06:35,840 --> 00:06:43,960 This isn't the first time Russian military presence has been so close to Norwegian borders. 80 00:06:43,960 --> 00:06:50,880 It seems that these waters are most important to Russia, but the question is why. 81 00:06:50,880 --> 00:06:57,320 It's no secret that Russia has big ambitions to dominate this Arctic region. 82 00:06:57,320 --> 00:07:02,280 The Arctic has been of strategic interest to Russia since the beginning of the Cold War, 83 00:07:02,280 --> 00:07:06,520 where it kept its nuclear weapons arsenal. 84 00:07:06,520 --> 00:07:08,400 Arctic region is enormous. 85 00:07:08,400 --> 00:07:14,000 Russia has expanded its military along the whole Arctic coast. 86 00:07:14,000 --> 00:07:19,600 Losharyk is just one of a growing number of nuclear-powered submarines and icebreakers 87 00:07:19,600 --> 00:07:21,520 in the region. 88 00:07:21,520 --> 00:07:27,080 Russia has bases and operational area for the strategic submarines which are capable of 89 00:07:27,080 --> 00:07:33,080 launching intercontinental ballistic missiles to the United States and Canada. 90 00:07:33,080 --> 00:07:38,840 But does the accident on board the doomed Losharyk expose another possible reason why Russia 91 00:07:38,840 --> 00:07:44,720 needs a strong naval presence in the Arctic, an area that's just beginning to reveal its 92 00:07:44,720 --> 00:07:48,440 untapped treasures? 93 00:07:48,440 --> 00:07:59,240 In 2017, Putin suggested that the Arctic contains over $35 trillion in untapped natural resources. 94 00:07:59,240 --> 00:08:03,040 It's the proverbial goldmine. 95 00:08:03,040 --> 00:08:08,640 And vessels like Losharyk can now access these rich waters through shipping routes made possible 96 00:08:08,640 --> 00:08:11,800 by the melting ice sheet. 97 00:08:11,800 --> 00:08:16,440 But it means other countries also have their eyes on the Arctic. 98 00:08:16,440 --> 00:08:18,640 Russia makes Russia very nervous. 99 00:08:18,640 --> 00:08:24,880 So the Losharyk contributes to this in the way that it strengthens the Russian presence 100 00:08:24,880 --> 00:08:26,800 in the region. 101 00:08:26,800 --> 00:08:33,520 But the sub's secret experimental design may hint at an even more threatening agenda, 102 00:08:33,520 --> 00:08:45,960 one that could cripple the West. 103 00:08:45,960 --> 00:08:51,600 As the ice cat melts in the Arctic Ocean, countries all over the world are racing to 104 00:08:51,600 --> 00:08:57,160 get their hands on the area's untapped wealth of natural resources. 105 00:08:57,160 --> 00:09:03,640 Could the Losharyk be part of Russia's secret plans to control these extremely lucrative 106 00:09:03,640 --> 00:09:06,920 waters? 107 00:09:06,920 --> 00:09:12,080 What the Losharyk was doing in the Arctic at the time of the fire is still a mystery. 108 00:09:12,720 --> 00:09:19,720 But the sub's advanced capabilities and unusual design may provide vital clues. 109 00:09:19,720 --> 00:09:23,880 This particular submarine used composite of a number of titanium spheres. 110 00:09:23,880 --> 00:09:25,400 They're also very enclosed spaces. 111 00:09:25,400 --> 00:09:30,040 So if something goes wrong in one of them, then that could become the tomb of anybody 112 00:09:30,040 --> 00:09:31,520 who is in there. 113 00:09:31,520 --> 00:09:36,880 Three days after the incident, it's revealed that the fire started in the sub's battery 114 00:09:36,880 --> 00:09:38,320 compartment. 115 00:09:38,320 --> 00:09:43,360 Although the vessel was nuclear powered, it does have batteries, a secondary source 116 00:09:43,360 --> 00:09:44,520 of power. 117 00:09:44,520 --> 00:09:48,680 And batteries under sea, they can let off gases. 118 00:09:48,680 --> 00:09:54,600 So the crew would have been trapped in small areas, and it would have been full of fire 119 00:09:54,600 --> 00:09:57,920 and smoke, and it would have contributed to their death. 120 00:09:57,920 --> 00:10:02,200 So in the wrong circumstances, the Losharyk could become a death trap. 121 00:10:02,200 --> 00:10:05,400 Why was it designed in a way that could endanger its crew? 122 00:10:05,960 --> 00:10:12,840 A series of spheres inside allows it to dive deeper than a conventional submarine would. 123 00:10:12,840 --> 00:10:19,160 The Losharyk was designed to carry out special operations at unusually extreme depths, possibly 124 00:10:19,160 --> 00:10:22,480 up to 20,000 feet down. 125 00:10:22,480 --> 00:10:27,640 This is 10 times deeper than the operational depth of a US submarine. 126 00:10:27,640 --> 00:10:32,800 The nuclear powered sub is equipped with another strange element. 127 00:10:32,800 --> 00:10:38,040 It has retractable manipulator arms on the outside of its hull. 128 00:10:38,040 --> 00:10:42,840 Why would the Losharyk need these robotic arms? 129 00:10:42,840 --> 00:10:49,320 The sub's advanced capabilities give Western intelligence reason to be suspicious. 130 00:10:49,320 --> 00:10:56,800 Losharyk could be hiding a sinister agenda, one that would bring mayhem across the globe. 131 00:10:56,800 --> 00:11:02,000 Maybe the submarine was trying to do something very clandestine and potentially illegal. 132 00:11:02,000 --> 00:11:07,840 Today, nearly all of our daily communications are carried through underwater cables, nearly 133 00:11:07,840 --> 00:11:12,720 750,000 miles of them running along the sea floor. 134 00:11:12,720 --> 00:11:17,080 On a daily basis, what could be going through these far-bred object cables? 135 00:11:17,080 --> 00:11:21,160 Well, it could be financial transactions, it could be any kind of secret communications, 136 00:11:21,160 --> 00:11:26,360 it can be the Allied nations communicating with their military assets around the world. 137 00:11:26,360 --> 00:11:30,680 Western intelligence speculates that with its unique design, the Losharyk's mission 138 00:11:30,680 --> 00:11:38,040 was to tamper with these deep-sea cables and possibly even sabotage them. 139 00:11:38,040 --> 00:11:46,360 Since 2015, various NATO officials were reporting that Russian submarines were operating quite 140 00:11:46,360 --> 00:11:49,760 close to the seabed cables. 141 00:11:49,760 --> 00:11:53,480 And of course the question was why? 142 00:11:53,480 --> 00:11:59,480 Severing them, severing the flow of information would strike very hard the economic and financial 143 00:11:59,480 --> 00:12:04,280 system and probably would wreak havoc on the Western societies. 144 00:12:04,280 --> 00:12:09,760 So far there is no hard evidence that confirms Losharyk's true mission. 145 00:12:09,760 --> 00:12:15,720 But what's telling is that even after the tragic fire that killed 14 elite submariners, 146 00:12:15,720 --> 00:12:19,560 it remains a crucial asset for Russia. 147 00:12:19,560 --> 00:12:24,520 Losharyk will be repaired and it will return to service because it's so important for the 148 00:12:24,520 --> 00:12:28,320 research, for the intelligence gathering, for the Russian Navy and the Russian Armed 149 00:12:28,320 --> 00:12:30,520 Forces in general. 150 00:12:30,520 --> 00:12:37,160 This mysterious sub will take years to repair, but its potential to wreak havoc in the future 151 00:12:37,160 --> 00:12:48,120 remains very real. 152 00:12:48,120 --> 00:12:53,960 Ancient underwater burial sites have been discovered all over Northern Europe, but few are as 153 00:12:53,960 --> 00:12:59,920 mysterious as the one found in a remote lake in Finland where the remains of around 100 154 00:12:59,920 --> 00:13:02,280 people are uncovered. 155 00:13:02,280 --> 00:13:07,560 Who these bones belong to and why they are here have remained unanswered for over three 156 00:13:07,560 --> 00:13:08,560 centuries. 157 00:13:08,560 --> 00:13:15,120 Now, with incredible advances in DNA technology, these cryptic bones might finally start to 158 00:13:15,120 --> 00:13:22,920 reveal their secrets. 159 00:13:23,920 --> 00:13:29,440 In 2018, scientists are examining human remains discovered in a very strange, gruesome looking 160 00:13:29,440 --> 00:13:33,640 lake in Western Finland known as Levenluhta. 161 00:13:33,640 --> 00:13:37,580 It's a real mystical but eerie sight. 162 00:13:37,580 --> 00:13:46,400 In the springtime, the lake's iron-rich, blood-like water foams up through the ground. 163 00:13:46,400 --> 00:13:51,240 Devoid of oxygen, it's perfect for preserving bones. 164 00:13:51,240 --> 00:13:55,440 This stops the microorganisms from eating the bodies of dead people buried inside of 165 00:13:55,440 --> 00:13:56,440 them. 166 00:13:56,440 --> 00:14:03,680 The mystery begins in 1884 when local men working in Levenluhta are shocked to discover 167 00:14:03,680 --> 00:14:06,280 eight human skulls. 168 00:14:06,280 --> 00:14:08,480 And it doesn't stop there. 169 00:14:08,480 --> 00:14:11,240 More and more human bones are recovered. 170 00:14:11,240 --> 00:14:15,840 The remains of approximately 100 people were found at this site. 171 00:14:15,840 --> 00:14:17,960 It's a gruesome discovery. 172 00:14:17,960 --> 00:14:20,440 Something extraordinary is going on at Levenluhta. 173 00:14:20,440 --> 00:14:26,760 It takes nearly 150 years for scientists to piece together clues from the human remains 174 00:14:26,760 --> 00:14:34,440 and start to unravel the riddle how so many bodies ended up in this chilling, watery grave. 175 00:14:34,440 --> 00:14:51,600 A mysterious and grisly lake in Finland is giving up numerous human remains. 176 00:14:51,600 --> 00:14:56,720 Archaeologists suspect they could be the victims of a brutal sacrifice. 177 00:14:56,720 --> 00:15:12,960 Local contemporary forensic analysis reveal the lake's dark secret. 178 00:15:12,960 --> 00:15:19,000 When the mass of human remains is uncovered in 1884, it's assumed they are war victims 179 00:15:19,000 --> 00:15:21,480 from the 16th century. 180 00:15:21,480 --> 00:15:25,800 People believe that these bodies might be from the Kudjul war, which was a peasant uprising. 181 00:15:25,800 --> 00:15:32,840 The peasants were fighting against exploitation by the nobility and the military. 182 00:15:32,840 --> 00:15:38,080 The name Kudjul comes from the type of weapons that the peasants used, blunt objects such 183 00:15:38,080 --> 00:15:40,000 as the Kudjul. 184 00:15:40,000 --> 00:15:45,880 The war was known for its weapons, but no weapons are found at Levenluhta. 185 00:15:45,880 --> 00:15:52,680 And the investigation throws yet another perplexing conundrum that scientists just can't solve. 186 00:15:52,680 --> 00:15:57,040 Shockingly, they discover that the bones are mostly women and children. 187 00:15:57,040 --> 00:16:01,320 The presence of women and children doesn't fit with the characteristics of a typical 188 00:16:01,320 --> 00:16:03,000 war grave. 189 00:16:03,000 --> 00:16:10,600 At the turn of the 20th century, an anthropologist throws even more doubt on the Kudjul war theory. 190 00:16:10,600 --> 00:16:15,880 Analysis of the skeletal remains reveals that the skulls are strangely narrower and longer 191 00:16:15,880 --> 00:16:19,040 than those of Finnish people. 192 00:16:19,040 --> 00:16:24,560 Scientists propose that the people are not from Finland at all, but from mainland Europe, 193 00:16:24,560 --> 00:16:31,400 where there are records of sacrificial rituals and burying the dead in water. 194 00:16:31,400 --> 00:16:37,400 There are multiple examples of watery graves and water burials in Northern Europe. 195 00:16:37,400 --> 00:16:43,280 We often see watery burials as a sacrifice to the gods, in which case criminals or bandits 196 00:16:43,280 --> 00:16:46,360 could be the ones who are buried there. 197 00:16:46,360 --> 00:16:53,360 They're usually found strangled, bound, there's acts of violence, throat slit. 198 00:16:53,360 --> 00:16:58,600 But the bones found in Levenluhta are missing a crucial piece of evidence to support this 199 00:16:58,600 --> 00:17:00,160 theory. 200 00:17:00,160 --> 00:17:05,760 These Finnish remains, there appears to be no acts of violence. 201 00:17:05,760 --> 00:17:09,720 The Levenluhta remains show no signs of trauma, so this could be evidence that this wasn't 202 00:17:09,720 --> 00:17:11,360 a sacrifice. 203 00:17:11,360 --> 00:17:19,480 It's not until 1993 that a breakthrough in forensic science begins to untangle this mystery. 204 00:17:19,480 --> 00:17:26,160 Through radiocarbon analysis, scientists can finally date the bones. 205 00:17:26,160 --> 00:17:29,560 Turns out they date to the Iron Age. 206 00:17:29,560 --> 00:17:35,600 The radiocarbon dates suggest that these people died somewhere between 500 and 700 AD. 207 00:17:35,600 --> 00:17:41,960 Now with specific dates, archaeologists investigate what was going on in Levenluhta around this 208 00:17:41,960 --> 00:17:42,960 time. 209 00:17:42,960 --> 00:17:49,760 They turn to ancient Norse mythology, and it provides a crucial clue of a terrifying 210 00:17:49,760 --> 00:17:52,640 doomsday event. 211 00:17:52,640 --> 00:17:57,040 Ancient Norse mythology mentions three successive winters without any summer, which they call 212 00:17:57,040 --> 00:17:58,480 the Fimble Winter. 213 00:17:58,480 --> 00:18:04,240 In the legend, snow comes in from all directions and ends all life on earth. 214 00:18:04,240 --> 00:18:11,560 A recent study in 2019 links the Fimble Winter to a series of real-life volcanic eruptions 215 00:18:11,560 --> 00:18:14,960 in Central America in the 6th century. 216 00:18:14,960 --> 00:18:22,800 A huge volcanic eruption which sparked darkness and social collapse across the world. 217 00:18:22,800 --> 00:18:24,480 This would have impacted agriculture. 218 00:18:24,480 --> 00:18:31,120 It would have led to crop loss and famine all across the Northern Hemisphere. 219 00:18:31,120 --> 00:18:37,000 Ancient crop failures caused the Levenluhta people to die of starvation. 220 00:18:37,000 --> 00:18:43,400 In 2019, with new technology, scientists finally analyzed the bones to determine if this freak 221 00:18:43,400 --> 00:18:48,800 climate disaster could be the cause of death. 222 00:18:48,800 --> 00:18:54,440 Isotopic analysis is used to reconstruct ancient diets, and the way that it's done is by looking 223 00:18:54,440 --> 00:18:59,160 at the carbon and the nitrogen values, and by doing that comparing it to different food 224 00:18:59,160 --> 00:19:00,160 sources. 225 00:19:01,040 --> 00:19:05,840 Isotopic analysis reveals something unexpected. 226 00:19:05,840 --> 00:19:14,080 These people exploited food from three sources, sea, earth, and fresh water. 227 00:19:14,080 --> 00:19:19,400 They had an incredibly varied diet and were actually really healthy when they died. 228 00:19:19,400 --> 00:19:24,200 Their versatile diet would make them well-equipped to deal with any sort of crop failure due to 229 00:19:24,200 --> 00:19:27,000 a catastrophic event. 230 00:19:27,000 --> 00:19:32,520 So modern science rules out the possibility that this extreme long winter killed the lake 231 00:19:32,520 --> 00:19:34,400 victims. 232 00:19:34,400 --> 00:19:40,400 After a nearly 150-year investigation, are we any closer to knowing why so many bodies 233 00:19:40,400 --> 00:19:43,360 ended up in Levenluhta Lake? 234 00:19:43,360 --> 00:19:48,240 Answers could be concealed in the ancient traditions of these mysterious people. 235 00:19:57,680 --> 00:20:03,080 The ancient Levenluhta lake bones are so well preserved that they still hold vital clues 236 00:20:03,080 --> 00:20:06,160 about who these people might be. 237 00:20:06,160 --> 00:20:11,560 DNA technology may finally reveal the identity of the people who were buried in this watery 238 00:20:11,560 --> 00:20:12,560 grave. 239 00:20:12,560 --> 00:20:18,760 In 2019, after samples of the bones are DNA tested, the scientists make a major breakthrough 240 00:20:18,760 --> 00:20:24,080 in this nearly 150-year-old investigation. 241 00:20:24,160 --> 00:20:29,960 DNA testing indicates that these were Sami people. 242 00:20:29,960 --> 00:20:35,640 The Sami are indigenous to Finland, but they inhabit areas much further north, nowhere 243 00:20:35,640 --> 00:20:38,920 close to the lake. 244 00:20:38,920 --> 00:20:44,560 What were these Sami people doing so far south, and how do they all end up in an underwater 245 00:20:44,560 --> 00:20:48,320 grave? 246 00:20:48,320 --> 00:20:54,120 With the latest genetic revelations, the puzzle pieces are coming together. 247 00:20:54,120 --> 00:21:01,120 Finnish scientists now have a new theory as to why these people were buried in a lake. 248 00:21:01,120 --> 00:21:07,320 And the answer could be found deep in Sami mythology. 249 00:21:07,320 --> 00:21:13,440 The Sami word, Saiva, is used to refer to a holy lake and the spirits living within 250 00:21:13,440 --> 00:21:14,440 it. 251 00:21:14,840 --> 00:21:19,520 Saiva lakes take on magical and mystical properties, and they represent the underworld 252 00:21:19,520 --> 00:21:22,160 for the Sami people. 253 00:21:22,160 --> 00:21:27,480 Were these ancient Sami people buried in the lake, which they believe to be a gateway to 254 00:21:27,480 --> 00:21:29,920 the afterlife? 255 00:21:29,920 --> 00:21:35,520 This exciting new evidence in an investigation that has lasted nearly a century and a half 256 00:21:35,520 --> 00:21:43,760 is beginning to rewrite the story of one of Europe's most extraordinary burial sites. 257 00:21:43,760 --> 00:21:50,480 The mystery of why these Sami people were buried in Levenlutta lake is not yet solved. 258 00:21:50,480 --> 00:21:56,120 However, as modern technology continues to transform archaeology, it may one day bring 259 00:21:56,120 --> 00:22:04,000 us closer to fully understanding our ancestors and their connection to the underwater world. 260 00:22:05,000 --> 00:22:15,440 A summer day at the beach turns ugly when a strange haze hits England's southern coast 261 00:22:15,440 --> 00:22:18,640 and hundreds of people end up in the hospital. 262 00:22:18,640 --> 00:22:23,680 No one's sure what's causing it and it's followed by similar incidents. 263 00:22:23,680 --> 00:22:31,000 Can authorities solve this toxic beach mystery before even more people fall ill? 264 00:22:35,000 --> 00:22:43,840 August 2017, Burling Gap Beach on the southern coast of England. 265 00:22:43,840 --> 00:22:47,760 Crowds are enjoying one of the hottest days of the year. 266 00:22:47,760 --> 00:22:53,120 Then like a scene from a horror movie, the air turns into a yellowy haze and begins 267 00:22:53,120 --> 00:22:59,880 to smell unbearably foul. 268 00:22:59,880 --> 00:23:04,800 Some say it's like the smell of burnt plastic and corpses. 269 00:23:04,800 --> 00:23:10,960 A nice day out in the sunshine turns into a nightmare for these beach-goers. 270 00:23:10,960 --> 00:23:17,440 Passerby's are heaving and wretching after coming in contact with this toxic mist. 271 00:23:17,440 --> 00:23:23,520 One person captures the bizarre moment on video. 272 00:23:23,520 --> 00:23:28,120 Kyle, when did you first start to notice things weren't quite right on the beach? 273 00:23:28,120 --> 00:23:34,400 I noticed sort of on the horizon, it was the yellowy kind of cloud getting closer and closer 274 00:23:34,400 --> 00:23:38,160 to the coastline and noticed more and more people around us. 275 00:23:38,160 --> 00:23:42,280 People coughing, spluttering, eyes watering. 276 00:23:42,280 --> 00:23:43,520 This is such an unusual incident. 277 00:23:43,520 --> 00:23:47,680 It must have been really scary not knowing what was happening. 278 00:23:47,680 --> 00:23:54,320 Everyone was rushing to their cars, there was traffic everywhere, coast guards, fire 279 00:23:54,320 --> 00:23:56,040 service, police, ambulance. 280 00:23:56,040 --> 00:24:01,200 It's so strange to just like, thousands of people just empty now on the road and just 281 00:24:01,200 --> 00:24:05,520 there was definitely much panic going on at the same time. 282 00:24:05,520 --> 00:24:08,680 A major incident is declared. 283 00:24:08,680 --> 00:24:14,200 The local hospital ends up carrying out one of the biggest mass decontaminations in England's 284 00:24:14,200 --> 00:24:16,480 history. 285 00:24:16,480 --> 00:24:20,440 About 200 people went to the hospital. 286 00:24:20,440 --> 00:24:24,680 This frightening toxic haze is coming in from the sea. 287 00:24:24,680 --> 00:24:32,720 But what's causing it is a mystery that no one can figure out. 288 00:24:32,720 --> 00:24:39,920 The scene in Burling Gap reminds people of a similar freakish incident four years earlier. 289 00:24:39,920 --> 00:24:46,000 In 2013, citizens living in South England complain of nausea and headaches and a foul 290 00:24:46,000 --> 00:24:50,400 rotten egg stench. 291 00:24:50,400 --> 00:24:55,720 This time, authorities can pinpoint where it's coming from. 292 00:24:55,720 --> 00:25:03,160 A gas leak from a power station in Normandy that has travelled 200 miles to the UK shore. 293 00:25:03,160 --> 00:25:09,840 If the wind is blowing the wrong way, then all that pollution gets blown across to the 294 00:25:09,840 --> 00:25:11,240 UK. 295 00:25:11,240 --> 00:25:16,960 Is another gas leak from France to be blamed for causing a stink on Britain's shore again 296 00:25:16,960 --> 00:25:19,760 four years later? 297 00:25:19,760 --> 00:25:25,720 Scientists have tried reverse modelling the winds at those particular times to pinpoint 298 00:25:25,720 --> 00:25:30,600 the location of the source of these toxins. 299 00:25:30,600 --> 00:25:37,280 The models show that on August 27th 2017, the surface air had come from an easterly direction 300 00:25:37,280 --> 00:25:43,600 and before that had been parallel to the coast and coming from the west. 301 00:25:43,600 --> 00:25:50,640 So a gas leak in France is quickly ruled out as the cause. 302 00:25:50,640 --> 00:25:57,320 There's no doubt however that the strange haze is coming from somewhere out at sea. 303 00:25:57,320 --> 00:26:02,360 Could the answer be found in a lethal marine phenomenon? 304 00:26:02,360 --> 00:26:07,240 In different water bodies, you will have what's called an algal bloom and this can happen 305 00:26:07,240 --> 00:26:10,720 as the seasons are warming up. 306 00:26:10,840 --> 00:26:16,720 Algal blooms are known sometimes to produce toxic chemicals that are not good for people. 307 00:26:16,720 --> 00:26:22,000 Two days after the incident, water samples are taken and tested for signs of an algal 308 00:26:22,000 --> 00:26:23,500 bloom. 309 00:26:23,500 --> 00:26:28,040 The measurements that were done in this case suggest that there just wasn't enough algae 310 00:26:28,040 --> 00:26:32,840 in the water to be producing anything that would harm human health on the beach. 311 00:26:32,840 --> 00:26:36,240 So what did cause this toxic mist? 312 00:26:36,240 --> 00:26:43,240 If it's not coming from the water, are there any other clues hiding in the air we breathe? 313 00:26:43,240 --> 00:26:50,240 Authorities turn to local air monitoring stations and they reveal something disturbing. 314 00:26:58,760 --> 00:27:04,240 When a toxic haze hits the southern coast of Britain, what's causing it leaves scientists 315 00:27:04,240 --> 00:27:05,240 puzzled. 316 00:27:05,240 --> 00:27:10,240 Could the answer lie in the foul smell coming from the toxic fog? 317 00:27:10,240 --> 00:27:19,240 If people are reporting smelling rotten eggs, my first idea is going to be there's sulfur 318 00:27:19,240 --> 00:27:22,080 dioxide out there. 319 00:27:22,080 --> 00:27:28,720 One air monitoring station reports an unusual increase in sulfur dioxide. 320 00:27:28,720 --> 00:27:34,440 Meteorological evidence already suggests the source is offshore. 321 00:27:34,440 --> 00:27:38,920 So the sulfur dioxide seems to be coming from the English Channel. 322 00:27:38,920 --> 00:27:43,120 The sulfur dioxide could have come from ships in the English Channel. 323 00:27:43,120 --> 00:27:48,320 The English Channel separates the UK and France and is one of the world's busiest shipping 324 00:27:48,320 --> 00:27:49,960 lanes. 325 00:27:49,960 --> 00:27:54,560 But how could this have produced toxic sulfur dioxide? 326 00:27:54,560 --> 00:27:58,880 The cargo ships contain hazardous and deadly chemicals. 327 00:27:58,880 --> 00:28:03,800 So sometimes shipping containers might fall off a ship which cause hazardous chemicals 328 00:28:03,800 --> 00:28:08,360 to enter the water and end up on nearby beaches. 329 00:28:08,360 --> 00:28:13,840 Authorities investigate the ships that were in the area at the time of the toxic haze. 330 00:28:13,840 --> 00:28:19,680 There are no reports of sulfur dioxide related accidents. 331 00:28:19,680 --> 00:28:24,640 Local authorities draw a blank and are no closer to solving the mystery of the toxic 332 00:28:24,640 --> 00:28:27,640 haze in Berlin Gap. 333 00:28:27,640 --> 00:28:32,360 The case goes cold until two years later. 334 00:28:32,360 --> 00:28:40,920 In 2019, only 25 miles away, a scarily familiar state of emergency is declared on the coast. 335 00:28:40,920 --> 00:28:43,880 Witnesses describe people heaving or wretching. 336 00:28:43,880 --> 00:28:46,080 The beaches are evacuated. 337 00:28:46,080 --> 00:28:51,760 Adding to the fear, the nightmare continues along the same coastline in yet another frightening 338 00:28:51,760 --> 00:28:52,760 scene. 339 00:28:52,760 --> 00:28:59,120 Only two weeks later, another 150 people fall ill on the coastline. 340 00:28:59,120 --> 00:29:04,200 Could the toxic chemical have returned? 341 00:29:04,200 --> 00:29:09,240 And authorities are very worried the whole thing could happen again. 342 00:29:09,240 --> 00:29:15,080 With three near identical cases within a space of two years, scientists desperately need 343 00:29:15,080 --> 00:29:20,800 to crack the unknown source of the toxic haze. 344 00:29:20,800 --> 00:29:26,240 Satellite data could hold the answer that everybody desperately seeks. 345 00:29:26,240 --> 00:29:34,840 In 2017, a satellite image captures a strange plume coming from the English Channel. 346 00:29:34,840 --> 00:29:44,120 One theory is that these toxic gases might come from some release of toxic substances 347 00:29:44,120 --> 00:29:45,120 from shipwrecks. 348 00:29:45,120 --> 00:29:55,560 They do often change, move, adjust, and you do get leakage of potentially polluting substances. 349 00:29:55,560 --> 00:30:02,400 The English Channel is littered with shipwrecks, sunk during the First and Second World Wars. 350 00:30:02,400 --> 00:30:06,720 These underwater ticking time bombs could be an explanation for the hazardous chemicals 351 00:30:06,720 --> 00:30:09,080 that arrive on the beach. 352 00:30:09,080 --> 00:30:14,400 The satellite image seems to show the plume coming from almost exactly the same location 353 00:30:14,400 --> 00:30:19,520 as a shipwreck, sunk by a German mine in 1917. 354 00:30:19,520 --> 00:30:25,880 It's known that there was a shipwreck from World War I, the SS mirror that lays in that 355 00:30:25,880 --> 00:30:29,360 particular part of the seabed. 356 00:30:29,360 --> 00:30:33,760 Investigators work out that if chemicals from the wreck were transported in the water, it's 357 00:30:33,760 --> 00:30:40,440 possible they could have reached Burling Gap at the exact same time the incident was reported. 358 00:30:40,440 --> 00:30:45,560 If the toxic plume was in the air, however, because of the easterly wind direction, the 359 00:30:45,560 --> 00:30:49,680 wreck is unlikely to have been the source. 360 00:30:49,680 --> 00:30:55,120 Authorities now believe a shipwreck leaking a toxic chemical is plausible, but it hasn't 361 00:30:55,120 --> 00:30:59,760 yet been categorically confirmed as the toxic culprit. 362 00:31:00,760 --> 00:31:06,360 A massive effort has been made to track down the source of this bizarre and terrifying 363 00:31:06,360 --> 00:31:10,160 haze, but there's still no definitive answer. 364 00:31:10,160 --> 00:31:17,000 And whether this poisonous seaside air will become more frequent and more dangerous remains 365 00:31:17,000 --> 00:31:19,320 a mystery. 366 00:31:19,320 --> 00:31:33,080 When divers explore a 300 year old wreck in the icy depths of the Baltic Sea, they uncover 367 00:31:33,080 --> 00:31:41,080 a vast amount of cargo, including an unexpected find, fragments of a Bible. 368 00:31:41,080 --> 00:31:46,720 Researchers are perplexed by how these paper pages could have survived underwater for three 369 00:31:46,720 --> 00:31:48,280 centuries. 370 00:31:48,280 --> 00:31:55,480 In their quest for answers, they reveal a ship with a saintly name, but a sinful past. 371 00:31:55,480 --> 00:32:02,720 2002, a team of Russian divers is exploring a shipwreck, hiding in the cold, dark waters 372 00:32:02,720 --> 00:32:06,880 of the Baltic Sea. 373 00:32:06,880 --> 00:32:12,160 They believe it could be the wreck of an 18th century vessel that was entangled in a corruption 374 00:32:12,160 --> 00:32:18,160 scandal at the time of Peter the Great. 375 00:32:18,160 --> 00:32:23,360 It's reputed to be hiding secret and legal cargo. 376 00:32:23,360 --> 00:32:28,760 Piecing together information from historical records and exploration of the wreck, the 377 00:32:28,760 --> 00:32:34,040 divers hope to find clues that will confirm that this is the infamous ship they've been 378 00:32:34,040 --> 00:32:36,280 looking for. 379 00:32:36,280 --> 00:32:42,480 They focus their attention first on some pieces of wood. 380 00:32:42,480 --> 00:32:47,560 They find bits of timber, which they can then radiocarbon date. 381 00:32:47,560 --> 00:32:51,760 Cainwitton dates from about 1650 to 1680. 382 00:32:51,760 --> 00:32:55,480 So it had to be made after them. 383 00:32:55,480 --> 00:32:59,520 More intriguing is a broken ceramic dish. 384 00:32:59,520 --> 00:33:09,640 It features an image of the biblical archangel Raphael, engraved with a date, 1696. 385 00:33:09,640 --> 00:33:14,520 These two pieces of dating evidence indicate this is the wreck of the archangel Raphael. 386 00:33:14,520 --> 00:33:18,880 The archaeologists realized they found a very special shipwreck. 387 00:33:18,880 --> 00:33:25,000 The divers have conclusive proof they found a notorious shipwreck with a 300-year-old 388 00:33:25,000 --> 00:33:29,200 unsolved mystery. 389 00:33:29,200 --> 00:33:33,920 Historical sources suggest the archangel Raphael could have been laden with smuggled 390 00:33:33,920 --> 00:33:37,440 cargo when it sank. 391 00:33:37,440 --> 00:33:42,840 After three centuries underwater, is there a trove of contraband still hiding inside 392 00:33:42,840 --> 00:33:45,920 the wreck? 393 00:33:45,920 --> 00:33:51,480 Researchers begin their investigation in Russian state navy archives, hoping to reconstruct 394 00:33:51,480 --> 00:33:55,040 the ship's final voyage. 395 00:33:55,040 --> 00:34:01,040 October 1724, the merchant ship departs St Petersburg. 396 00:34:01,040 --> 00:34:07,080 It's intended destination, the German port city of Lubeck. 397 00:34:07,080 --> 00:34:12,800 It's normal for the trade between the German and Russian ports from St Petersburg to Lubeck. 398 00:34:12,800 --> 00:34:19,880 There is a row of trading towns, really, entrepons along the coast. 399 00:34:19,880 --> 00:34:27,000 It was a vibrant trading economy and the archangel Raphael was a key part of this. 400 00:34:27,000 --> 00:34:32,960 The location of the wreck, however, is mysteriously far away from its intended route. 401 00:34:32,960 --> 00:34:38,320 The ship was originally headed to Lubeck, which is nowhere close to where it was found. 402 00:34:38,320 --> 00:34:40,960 So what the heck was it doing there? 403 00:34:40,960 --> 00:34:46,520 Luckily for the investigators, details of the ship's sinking are well documented and 404 00:34:46,520 --> 00:34:49,800 they are yielding some critical clues. 405 00:34:49,800 --> 00:34:56,880 The historical archives suggest that this ship was lost by getting stuck in ice and 406 00:34:56,880 --> 00:35:02,520 as the ice moves the ship is basically crushed and wrecked. 407 00:35:02,520 --> 00:35:08,840 The crew all survive and are able to successfully get away from the ship before it sinks. 408 00:35:08,840 --> 00:35:14,160 The wreckors describe how local inhabitants try to salvage cargo through an ice hole a 409 00:35:14,160 --> 00:35:17,240 few months after the ship goes down. 410 00:35:17,240 --> 00:35:23,200 They recover over 350 bales of leather and say there's more cargo out of reach inside 411 00:35:23,200 --> 00:35:25,160 the wreck. 412 00:35:25,160 --> 00:35:29,920 In their quest to discover if these could be smuggled goods, the investigators turn to 413 00:35:29,920 --> 00:35:37,840 original customs documents and they expose something highly suspicious. 414 00:35:37,840 --> 00:35:44,200 When the Archangel Raphael departs St. Petersburg in October of 1724, according to customs records 415 00:35:44,200 --> 00:35:46,480 it's nearly empty. 416 00:35:46,480 --> 00:35:50,080 This contradicts what the local divers saw. 417 00:35:50,080 --> 00:35:53,840 There might have been some smuggling going on. 418 00:35:53,840 --> 00:35:57,440 The ship was clearly up to no good. 419 00:35:57,440 --> 00:36:02,560 Not only does this strongly suggest the ship was carrying illegal goods when it sank, it 420 00:36:02,560 --> 00:36:09,280 also helps researchers understand why the wreck is far from its intended destination. 421 00:36:09,280 --> 00:36:16,280 It's thought Archangel Raphael stops on the way to Lubeck in a place called Krasnia Gorka 422 00:36:16,280 --> 00:36:20,320 where it could possibly have taken on the contraband. 423 00:36:20,320 --> 00:36:25,400 This place is well known for its smuggling activities and suspiciously the Archangel 424 00:36:25,400 --> 00:36:29,680 Raphael stays there for a biblical 40 days. 425 00:36:29,680 --> 00:36:35,840 The long stopover results in the ship getting trapped in the ice and abandoned by its crew, 426 00:36:35,840 --> 00:36:39,240 after which it sinks. 427 00:36:39,240 --> 00:36:44,440 Everything on board the Archangel Raphael, from personal items to cargo, is left just as it 428 00:36:44,440 --> 00:36:45,800 is. 429 00:36:45,800 --> 00:36:52,560 And the ship lies forgotten in the Baltic waters for three centuries. 430 00:36:52,560 --> 00:36:55,760 Until 2014. 431 00:36:55,760 --> 00:37:01,840 Have these precious artifacts survived and what dark secrets can they reveal about the 432 00:37:01,840 --> 00:37:14,840 Archangel Raphael? 433 00:37:14,840 --> 00:37:20,600 Russian underwater archaeologists hope to discover what treasures are hiding inside the 18th 434 00:37:20,600 --> 00:37:29,920 century shipwreck Archangel Raphael and whether they've survived 300 years underwater. 435 00:37:29,920 --> 00:37:36,000 After investigating historical records, maritime archaeologists now need to go underwater to 436 00:37:36,000 --> 00:37:41,800 find out more about this infamous merchant ship. 437 00:37:41,800 --> 00:37:46,240 The investigators plan to excavate the ship. 438 00:37:46,360 --> 00:37:49,560 In 2014, excavations begin. 439 00:37:49,560 --> 00:37:54,360 Divers look for any clues that might help uncover the truth about what the ship is carrying 440 00:37:54,360 --> 00:37:57,040 when it sinks. 441 00:37:57,040 --> 00:38:01,680 Is it possible the cargo could have survived for three centuries? 442 00:38:01,680 --> 00:38:06,640 The beauty of the Baltic Sea when it comes to preserving a shipwreck is the water is 443 00:38:06,640 --> 00:38:07,640 brackish. 444 00:38:07,640 --> 00:38:17,200 All the little critters that would normally eat and degrade organic materials just aren't 445 00:38:17,200 --> 00:38:19,400 present. 446 00:38:19,400 --> 00:38:24,280 As divers explore inside the shipwreck, they find something unusual. 447 00:38:24,280 --> 00:38:29,720 They're shocked to find artifacts covered completely in tar. 448 00:38:29,720 --> 00:38:33,480 Tar was often transported inside of wooden barrels in this period. 449 00:38:33,880 --> 00:38:38,520 Now remember that the ship is locked in ice and has been gradually, slowly over a period 450 00:38:38,520 --> 00:38:44,080 of time crushed and crushed and eventually the tar starts to leak out and it goes all 451 00:38:44,080 --> 00:38:46,840 over the various artifacts. 452 00:38:46,840 --> 00:38:54,160 It's a setback for the archaeologists who were hoping to find the artifacts still intact. 453 00:38:54,160 --> 00:38:58,920 Then the mystery of the ship's cargo takes a new twist with the discovery of a book of 454 00:38:58,920 --> 00:39:02,000 Psalms. 455 00:39:02,000 --> 00:39:06,440 The book, strangely, is unlike the other artifacts. 456 00:39:06,440 --> 00:39:11,720 They find one of the most precious items of cargo is not covered in tar. 457 00:39:11,720 --> 00:39:13,360 And why is this? 458 00:39:13,360 --> 00:39:18,480 Scientists restoring these pages in their labs are surprised to find them perfectly intact 459 00:39:18,480 --> 00:39:19,480 and legible. 460 00:39:19,480 --> 00:39:24,280 It's very rare to find paper preserved on these sorts of sites. 461 00:39:24,280 --> 00:39:28,360 Instead of tar, this book has been hiding away in silt. 462 00:39:29,320 --> 00:39:35,080 Silt or mud is very good at preserving artifacts because it creates sort of anoxic environment. 463 00:39:35,080 --> 00:39:42,000 It reduces the amount of oxygen, which is what organisms need in order to decompose. 464 00:39:42,000 --> 00:39:48,320 Why it's only this holy book that avoided being covered in tar is a mystery. 465 00:39:48,320 --> 00:39:53,480 Being named the Archangel Raphael, is there some kind of magical or spiritual activity 466 00:39:53,480 --> 00:39:55,480 going on? 467 00:39:55,600 --> 00:40:02,320 Unable to see the complete load of cargo still hiding inside, the dive team employs photogrammetry 468 00:40:02,320 --> 00:40:05,120 to fully survey the wreck. 469 00:40:05,120 --> 00:40:12,120 Photogrammetry is a series of photographs or images, and when we merge them together, 470 00:40:12,120 --> 00:40:16,520 we can create a three-dimensional image of the object. 471 00:40:16,520 --> 00:40:23,120 The incredibly accurate 3D model of the ship and seven years of painstaking excavation begin 472 00:40:23,160 --> 00:40:28,960 to yield stunning discoveries, including items of clothing that just shouldn't have survived 473 00:40:28,960 --> 00:40:30,840 for so long. 474 00:40:30,840 --> 00:40:35,840 What makes the Archangel Raphael so special is the preservation of organic material on 475 00:40:35,840 --> 00:40:39,720 this incredible site. 476 00:40:39,720 --> 00:40:45,560 And after years of researching the state archives, they finally find physical evidence of smuggled 477 00:40:45,560 --> 00:40:48,000 goods on board the ship. 478 00:40:48,000 --> 00:40:53,000 The ship is in a legal possession of goods. 479 00:40:53,000 --> 00:40:58,000 The 18th century was known as the Golden Age of Smuggling. 480 00:40:58,000 --> 00:41:04,000 The ship is a ship that was built in the 18th century, and it was built in the 18th century 481 00:41:04,000 --> 00:41:08,000 and was called the Golden Age of Smuggling. 482 00:41:08,000 --> 00:41:14,000 The ship was built in the 18th century, and it was built in the 18th century, and it was 483 00:41:14,000 --> 00:41:17,000 known as the Golden Age of Smuggling. 484 00:41:17,000 --> 00:41:24,000 And the staggering amount of artifacts retrieved three centuries later reveals the true scale 485 00:41:24,000 --> 00:41:30,000 of the ship's lucrative cloak and dagger operation. 486 00:41:30,000 --> 00:41:38,000 After years of investigating the wreck, 400 items are recovered in total, including things 487 00:41:38,000 --> 00:41:45,000 which are impossible to imagine in their worth, and things we had never believed would be 488 00:41:45,000 --> 00:41:48,000 recovered from such a wreck. 489 00:41:48,000 --> 00:41:55,000 Researchers believe there could be even more secrets hiding in the Archangel Raphael. 490 00:41:55,000 --> 00:42:00,000 Wrecks and historical treasures like these lead us to wonder what other time capsules 491 00:42:00,000 --> 00:42:05,000 the sea has preserved, still waiting to be discovered. 492 00:42:08,000 --> 00:42:11,000 you