Eight young adventurers go to extremes to help the planet. The Ocean Eight are over a week into an extraordinary voyage of discovery, sailing near Cape Horn at the southern tip of South America.

The team kayak down a spectacular fjord to spend the night camping by a glacier. Charlotte gets the trip of a lifetime flying over the region by helicopter. Gutting a fish for supper prompts one of the biggest rows of the trip and the conflict between David and Sybil reaches a new low. Show less