Actor, comedian and retired Marine, Rob Riggle is traveling the globe to unearth some of the world’s greatest legends and mysteries. In his quest for answers to humanity’s biggest questions, Riggle teams up with experts and scholars that help him use history, archaeology, science and more to uncover the truth. He will take on some of the biggest challenges and most daring adventures — from traveling to Scotland in search of The Holy Grail to diving in Greece for the lost city of Atlantis, and jetting off to Key West to look for a pirate’s hidden treasure. Fearless in the pursuit of adventure, Riggle will put new skills to the test, try new delicacies, and meet new people as he travels the globe investigating one epic mystery at a time.