First broadcast: on BBC One HDLatest broadcast: on BBC Two Northern Ireland HD
Sue Perkins starts her journey in Tokyo, home to 36 million people. She trains with a female sumo wrestling team and meets a family who live with robots. Show more
First broadcast: on BBC One LondonLatest broadcast: on BBC Two Northern Ireland
Sue Perkins enjoys a night out with Kyoto's geishas, goes free diving with some ama divers and visits Hiroshima. In Tokyo, she explores how the Japanese are tackling the future. Show more
