Among the missing: the White House cornerstone, the very first piece of the White House, laid by the secretive Freemasons. Then, letters from an American soldier in Vietnam--pilfered for enemy propaganda. Plus: a lost gun might be the key to solving the infamous Amityville murders.

Host Brad Meltzer recruits help to find rare and historic footage from D-Day, shot behind enemy lines. FDR's inaugural address is stolen from the National Archives, and the distressing tale of George Harrison's guitar.

Brad Meltzer provides updates on how viewer tips are helping the search for lost and stolen historic artifacts; new leads on the missing Ground Zero flag, the lost Hitler photo albums, and the stolen Roots Plaque.

Brad Meltzer provides updates on how viewer tips are helping the search for lost and stolen historic artifacts; new leads on the missing Ground Zero flag, the lost Hitler photo albums, and the stolen Roots Plaque.

The iconic Ground Zero Flag, raised by firefighters on 9/11. A few hours after it was raised, this sacred relic simply disappeared. Then, a multi-million dollar collection of jewel-encrusted swords and daggers that once belonged to Harry Truman is stolen, in a daring daylight heist. Plus: the incredible story of John Dillinger's Tommy gun, stolen from a police station before becoming his favorite weapon, goes missing for decades.

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.

Among the missing: Apache warrior Geronimo's skull, rumored to be robbed from the grave by the top secret society the "Skull and Bones." Then, Teddy Roosevelt's revolver is boldly stolen from a museum. Plus: what really happened to a Cadillac driven by notorious gangster Al Capone?

A historic plaque commemorates Alex Haley's epic slave history "Roots"; FBI agents search for criminals trying to sell North Carolina's original copy of the Bill of Rights; a ring worn by Lee Harvey Oswald the morning that JFK was assassinated.

Host Brad Meltzer is searching for actual lunar rocks brought back from the moon by American astronauts during the Apollo space program; the Derringer pistol that John Wilkes Booth fired to assassinate Abraham Lincoln.

Among the missing: historic Moon Tapes that hold the clearest footage from the Apollo 11 moon landing. Then, President Lincoln's brilliantly written Bixby Letter that inspired the movie Saving Private Ryan is missing. Plus: the daring heist of George Washington's false teeth from the Smithsonian Museum.

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. Plus: an FBI sting operation seeks a Civil War relic stained with human blood.