History tells us that Hitler killed himself in his underground bunker, but one U.K. journalist believes he actually escaped. If so, where did he go?
Explore the claim that members of the British royal family may have helped the Nazis, and look into the untimely death of Prince George, Duke of Kent.
Was the Cold War the work of one man? Examine the life of German spy Reinhard Gehlen, who some think used secrets and whispers to fuel the arms race.
Investigators look at some of history's most infamous disappearances and deaths, including those of Jimmy Hoffa, Lord Lucan and Robert Maxwell.
Explore the dark side of Hollywood, with theories into the hacking of Sony Pictures, the influence of Scientology and the murder of the Black Dahlia.
Experience several alleged alien encounters, including that of Robert Taylor, whose claim was so compelling that police opened an investigation.
Delve into the theories surrounding the tragic and untimely deaths of Robert Kennedy, Pope John Paul I and English television presenter Jill Dando.
Explore the many conspiracy theories surrounding the Roman Catholic Church, including whether officials helped Nazi war criminals evade justice.
One of history's most controversial conspiracy theories goes under the microscope, as investigators argue whether the moon landing was real or staged.
Do governments sometimes sacrifice their own people for political gain? Examine several conspiracy theories that allege exactly that.
In this music-themed episode, experts explore conspiracy theories surrounding Jim Morrison, the Rolling Stones, Led Zeppelin and the Sex Pistols.
Examine the conspiracy theories surrounding Pan Am Flight 103, the 9/11 attacks, a mass poisoning and an infamous case of arson in Nazi Germany.