The actor and his son hit the road together on a series of adventures, travelling this time to Japan, where they begin in Tokyo. Together, the pair visit one of the country's biggest and most bizarre shops, get a taste for the national sport of sumo and enjoy some karaoke before resting their heads in one of the city's unique capsule hotels. Brad's fear of heights is tested by hanging on a bridge in the Arakawa Valley.

The Walshes reach Osaka as they explore the city in go-karts, learn how to become ninjas, and have a go at the quirky yet growing Japanese sport of pillow fighting.