Ten British children go on the biggest adventure of their lives, learning how to take on the great outdoors under the watchful eye of the world's leading survival expert in the rugged mountains of Snowdonia in Wales. The young survivors have a day out at the seaside - but it is no holiday. Their mission is to jump off a five-metre cliff and swim to a tiny island, but in dangerous waters several are forced to abandon the attempt. On the seafood survival menu - seaweed, limpets and fish eyes. The course instructors are not amused as a late night party leaves the camp in a state.