The Tomb of the Unknown Soldier once held four bodies, now there are only three. Discover the remarkable story of Michael Joseph Blassie who was buried in the tomb for decades before being identified.

On July 30th 1945 the USS Indianapolis was torpedoed by a Japanese submarine. Over 800 sailors were stranded on the open sea, facing devastating conditions and hungry sharks. Only 316 sailors were rescued. The final resting place of the ship was a mystery until 70 years later.

In 1845 the Franklin Expedition set sail on a quest to chart the Arctic and vanished without a trace. 250 years later, a shocking revelation leads to the ships being discovered underneath the ice and the gruesome fate of the explorers is finally revealed.

In 1974 two journalists brought down President Richard Nixon by uncovering the Watergate Scandal. Crucial to their story was a secret whistleblower called "Deep Throat". Over 30 years later his identity was finally revealed.

Following the execution of the Russian Tsar and his family in 1918 , persistent rumors circulated of his youngest daughter Anastasia's possible escape. Over 100 years later, cutting edge technology finally provides a definitive answer to Her fate.

When famed aviator Charles Lindbergh's baby was kidnapped and murdered in 1932, the press was quick to dub the tragic incident "the crime of the century." For more than 2 years the search for the culprit transfixed the nation.

Following recent news of the history-making discovery of Shackleton's ship the Endurance, this 90-minute special will serve as a definitive look at Sir Ernest Shackleton's historic and ill-fated 1914 Antarctic expedition resulting in the loss of his highly revered ship, as well as maritime archaeologists' relentless mission to find this holy grail of shipwrecks.