Season 1

Jeremy Wade investigates if one of the Bermuda Triangle's most infamous disappearances was part of a conspiracy by a secret agent at war with the United States, and using technology, experts reveal if it vanished for far stranger reasons.

A sunken Nazi submarine packed with toxic cargo is a ticking timebomb that could put the whole world at risk; Jeremy Wade reveals the sub's top-secret mission on the day it sank and how experts keep it from sparking a global catastrophe.

Jeremy Wade reveals the new deep-sea discoveries that might offer definitive proof of the infamous giant squid, and using this fresh evidence, experts investigate if this underwater monster is the legendary kraken.

Jeremy Wade goes inside a cutting-edge archaeological investigation that is unearthing brand-new discoveries about Noah's Ark; as experts get closer to finding its final resting place, they reveal the long-lost secrets of this famous vessel.

When a mummified body is discovered on an abandoned boat, investigators struggle to explain where it came from, so Jeremy Wade sets out to reveal what happened.

Newly declassified files reveal the details of an unexplained encounter between the US Navy and UFOs that seem to defy the laws of physics; using cutting-edge tech, Jeremy Wade investigates the truth behind this alien mystery.

Mysterious reports of boiling seas in the Bermuda Triangle might be evidence of a deadly undersea volcano with a long list of victims; Jeremy Wade investigates the newest discoveries from this strange stretch of water in search of proof.

Jeremy Wade investigates the whereabouts of a lost relic of the Space Age that tarnished the reputation of NASA's first astronauts; as cutting-edge technology turns up brand-new evidence, experts might finally vindicate this American hero.

Jeremy Wade chases new leads in pursuit of the Loch Ness Monster.

Jeremy Wade reveals details of a high-speed chase between a narco sub and the US Coast Guard; with the help of declassified files and cutting-edge military technology, experts investigate if they've found Pablo Escobar's lost treasure.