British and Irish Lion rugby legends (and Wales and England rivals) Shane Williams and Lee Mears become idiots abroad as they travel to Japan to check out what the host nation for the 2019 Rugby World Cup has in store for visiting fans.

Following a successful first series for Sky Sports and World Rugby, featuring Shane's compatriot Andy Powell,  we send the legend of the sport back to the country where he finished his career. This time, there's added spice as rivalries are rekindled via kabuki theatre, dog sled racing and ninja fighting.