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Exploring the puzzling disappearance of an Indonesian submarine; the latest research into an underwater phenomenon may help piece together how it vanished.

Mysteries of the Deep

Mystery of the Sub Destroyer

Jeremy Wade explores an accident involving a Russian nuclear submarine on a top-secret mission, and shocking details emerge surrounding the vessel's design; scientists investigate ancient human remains emerging from a lake in Finland.

Secrets of Russia's Nuclear Sub

Jeremy Wade investigates the infamous shipwreck of the Titanic; locals are baffled when a bag containing 54 severed human hands is found on the banks of a Siberian river.

Titanic Phenomenon

Jeremy Wade examines new evidence that could finally reveal what happened to aviator Amelia Earhart; Jeremy investigates a strange anchor found in the Mediterranean Sea.

Jeremy Wade follows investigators as they dive the wreck of the ferry MS Estonia; the case of America's notorious skyjacker DB Cooper takes an intriguing underwater twist.

Secrets of the MS Estonia

Jeremy Wade explores the hidden and dark secrets behind a 150-year-old shipwreck off the coast of Sisal, Mexico, revealing an unknown and troubling maritime past. Also, a mysterious boiling river hidden deep in the heart of the Amazon is uncovered.

Shipwreck Ghosts of Mexico

Jeremy Wade takes a fresh look at the Battle of Actium; Jeremy investigates what could be the first recorded case of a whale rescuing a human.

Mystery of the Ancient Battle

Jeremy Wade explores a shipwreck that may contain stolen Nazi treasure, the priceless lost furnishings of the 18th century Amber Room; astonishing footage captures the exact moment when freight ship MV Arvin split in two and sank in the Black Sea.

Shipwreck of Nazi Treasure

The deep-sea remains a dangerous and unexplored frontier -- a place that swallows evidence and where the unknown is normal; Jeremy Wade searches for answers behind the world's most iconic and baffling underwater mysteries known to science.

S2 E6 | Titanic Phenomenon