Dog's sensei is retiring and coming over for a visit. As a gift, Dog tries to become a karate master too, but when the kids get switched for robots, it gets complicated. Show more
Discover 11,128,835 listings and 278,136 playable programmes from the BBC
Dog's sensei is retiring and coming over for a visit. As a gift, Dog tries to become a karate master too, but when the kids get switched for robots, it gets complicated. Show more