After the tranquillity of the islands of Koh Phi Phi, the teams now face a giant leap into the unknown, leaving Thailand behind to embark on a 2,000km journey to the Indonesian island of Sumatra. Show more
Discover 11,128,835 listings and 279,774 playable programmes from the BBC
After the tranquillity of the islands of Koh Phi Phi, the teams now face a giant leap into the unknown, leaving Thailand behind to embark on a 2,000km journey to the Indonesian island of Sumatra. Show more