Josh Gates celebrates all things superhero with The Mandalorian's Katee Sackoff, "Spiderman" and "True Blood" star Joe Mangienello and Famke Janssen of "X-Men." Plus, Josh sees if he has superpowers when he rumbles on the set of Battlebots.

Josh is in the holiday spirit with star of "A Christmas Story" Peter Billingsley, actress Judy Greer of "Uncle Frank" and "The Wedding Planner" as well as Reginald VelJohnson of "Die Hard." Josh also learns what it's like to be a real-life Elf on a Shelf.