Josh has the bright idea to celebrate invention and talks to star of Empire and accomplished inventor, Terrence Howard, Star Trek's Brent Spiner and Rick and Morty creator Dan Harmon. Josh tries a crucial invention -- a 747 flight simulator.

Josh hosts like a boss as he chats with TV and movie mobsters including Goodfella's Paul Sorvino, Sopranos' stars Michael Imperioli and Steve Schirripa, as well as Men In Black's Vincent D'Onofrio. Josh goes on the lam to Las Vegas' mobster museum.

Joes goes all in on urban legends with Dexter's JoBeth Williams, Jason from Friday the 13th, Kane Hodder, as well as a visit from his Expedition X team Phil Torres and Jessica Chobot. Josh pressure tests classic and modern urban legends.

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.

Josh laughs into the world of sitcoms, with Simpsons legend Harry Shearer, Fraiser's Kelsey Grammar and Curb Your Enthusiasm's Susie Essman. Josh hits the road with Susan Olsen of The Brady Bunch for a covert mission.

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.