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 for an action-packed two week trip. Bear shows the young survivors how to use their wee to heat up food, before they head out into the Welsh hills on a gruelling two day expedition. The 12 to 15-year-olds are confronted with the ultimate leap of faith into a pitch-black abyss. As a storm comes in, a night camping out turns into a serious survival situation.