Josh Gates investigates shocking conspiracy theories, including that the Titanic was sunk by more than just an iceberg, the true story behind the death of Harry Houdini, and lost Civil War Gold that spawned a lawsuit against the FBI.

Josh Gates investigates several mysterious tragedies and downfalls. An expedition crew goes insane, turning cannibalistic; an explorer searches for a lost city in the Brazilian rainforest; an aspiring young actress falls victim to a deranged killer.

Generations later, the truth of serial killer H.H. Holmes's death may be exposed by one of his descendants. Did the government conspire with the mafia about a mysterious helicopter crash? How might the youngest Romanov daughter have escaped slaughter?

New evidence suggests the infamous outlaw Billy the Kid may have lived to old age under an alias. Modern scholars explore the true identity of the Man in the Iron Mask. After their UFO encounter, Betty and Barney Hill were forever changed.

Josh Gates looks at some of history's most intriguing hoaxes and unexplained events, including the Amityville Horror, the strange fate of a military submarine crew, and a phenomenon in which people's body fat causes them to burn alive.

The true identity of infamous plane hijacker D.B. Cooper may finally be revealed. The fate of Michael Rockefeller, lost heir to the Rockefeller fortune, is exposed. The car in which James Dean died might not be missing anymore.