The most shocking missing item of all: the iconic Ground Zero Flag, raised by firefighters on 9/11. A few hours after it was raised, this sacred relic simply disappeared. 

Host Brad Meltzer and viewers are on the hunt for lost and stolen history, including Hitler's personal photo albums and James Bond's original Aston Martin.

Host Brad Meltzer and viewers are on the hunt for lost and stolen history, including JFK's actual brain tissue and millions of dollars of gold coins stolen from the U.S. Mint. Plus, a remarkable violin from the Titanic.

Brad Meltzer and viewers are on the hunt for lost history. Among the missing: actual lunar rocks brought back from the moon by American astronauts during the Apollo space program - and later stolen from NASA headquarters in a daring heist. 

Host Brad Meltzer and viewers are on the hunt for lost and stolen history, including an historic plaque commemorating Alex Haley's Roots. Plus: an original copy of the Bill of Rights, and a mysterious ring worn by Lee Harvey Oswald.

Brad Meltzer enlists America's help to find lost and stolen historical artifacts, which are going missing from museums and public collections at an alarming rate.

Brad Meltzer enlists America's help to find lost historical artifacts, which are going missing from museums and public collections at an alarming rate. Including historic moon tapes that hold the clearest footage from the Apollo 11 moon landing.

Brad and the team hunt for the missing White House cornerstone, as well as a lost gun that could prove key to solving the infamous Amityville murders.

The team join the hunt for lost footage of a D-Day secret mission. Plus, can they find one of The Beatle's, George Harrison's most famous guitars?

In a special season finale, Brad Meltzer provides updates on how viewer tips are helping the search for lost and stolen historic artefacts.