What really happened to union boss Jimmy Hoffa? Could modern technology finally prove the existence of the Holy Grail? And did inventor Rudolf Diesel really die at sea, or did he stage his own disappearance?
Was witchcraft at work during the Salem witch trials, or an undiagnosed psychological illness?; did Britain's famous UFO sighting by officials have a more earthly explanation?; who's really responsible for the murder of the Mad Monk of Russia?
A body is found on a beach with only a cryptic note; the Trojan War and the Trojan Horse were once thought to be pure myth, but the discovery of ruins reveals they were all too real; new evidence may prove Shakespeare didn't write his own works.
What really became of Konigsberg Castle's Amber Room, stolen by the Nazis? Could a lost hard drive in a British landfill hold millions in Bitcoin? Did King Solomon's legendary mines ever exist?
Josh Gates investigates conspiracy theories, including new discoveries suggesting 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.
The truth about 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?
New evidence suggests the infamous Billy the Kid may have lived to old age under an assumed name; modern scholars explore the true identity of the "Man in the Iron Mask."
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.
New evidence suggests Jack the Ripper's identity, while DNA analysis indicates possible Yeti existence; Max Headroom interrupts live broadcast, surprising everyone.