Sixteen incredible adventurers, plucked from thousands, are stranded on a tropical island thousands of miles away from school, friends, family and normality. This is no ordinary island. It is a devious, mischievous, sinister place that will do anything it can to prevent the adventurers from escaping. The adventurers face the Depth Charge challenge. They have to swim out to sea, collect sunken boat pieces, and then race to construct complicated cog powered rafts. The challenge is hard, things get very tense, and the finish is nail-biting. Which team will make it through to the Double Jeopardy round where the stakes are raised and the challenge is even tougher? Who will be taking on the Captain's Task? What else has the island got in store for the adventurers?