Josh searches for Lost Cities with Jurassic Park's BD Wong, comedian and explorer Tom Green, Jumanji's Rhys Darby and the stars of Discovery's Chasing Atlantis. Josh gets lost in an otherworldly distillery.

Josh dives in to explore underwater mysteries with Shawshank Redemption's Tim Robbins, Titanic's Billy Zane and The Perfect Storm's William Fichtner. Josh suits up to dive a shipwreck off the California coast.