On the trail of the secretive Knights Templar, Josh chases the legendary warriors' lost fortune including the coveted Holy Grail. In England, Josh digs in to find a Templar buried tunnel. Then, he travels to Poland to excavate a rare Templar gravesite.

Tackling the most famous prison break of all time, Josh retraces the 1962 Alcatraz escape; new leads take Josh from San Francisco to the jungles of Brazil, where he finds witnesses and evidence that rewrite the FBI's version of the story.