Expedition Files

Was the Hindenburg truly destroyed by accident or by sabotage? Could the famous Patterson-Gimlin Bigfoot footage hold clues that only modern analysis can define? What really happened when 50,000 Persian soldiers disappeared without a trace in 524 B.C.?

Using modern analysis and a "virtual time machine" to explore three distinct historical or scientific mysteries under a single theme.

A real child whose possession inspired "The Exorcist"; a master con artist who left a trail of deception (and maybe murder); and an ancient army defeated by hallucinogenic honey, these three stories prove that truth can outmatch fiction.

High on Everest's icy slopes, two climbers vanish into legend. In a quiet West Virginia town, a ghost demands justice from beyond the grave. And learn the real story of Mata Hari -- the exotic dancer condemned as a German spy.

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.

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.

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.

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?

A new investigation into the Shroud of Turin, a cloth said to have covered Jesus' body, reveals clues toward its authenticity. Modern tools are used to analyze photos of ghosts from the 1800s.

Cryptic clues left by the Zodiac Killer are finally deciphered, leading to a prime suspect. The location of Forrest Fenn's million-dollar buried treasure is revealed. The Voynich Manuscript, a text that possibly explains the origins of life, is decoded.

In the 16th century, settlers of Roanoke vanished without a trace. New evidence finally reveals what happened. Archaeologists investigate what destroyed the original Sin City, Sodom. A bold new theory suggests Stonehenge may be more than it seems.

Josh Gates investigates whether an ancient curse killed the explorers who discovered King Tut's tomb, the strange and untimely demise of nine students hiking in Siberia, and the mysterious disappearance of an influencer in the Nevada desert.