Josh Gates explores the edges of our world and outer space as he talks to adventurer Ranulph Fiennes and NASA astronauts Bob Behnken and Doug Hurley. Josh takes on the urban jungle in a new way -- as a dog musher.

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.