Despite being marooned for a month, the men and women on the Island are barely managing to survive. Without a sustainable food source and insufficient shelter to protect them from the brutal tropical storms, the Islanders are on the brink of disaster as their bodies start to fail. In desperation, the women muster the energy to make one last push to look for food; and Simon leads a hunt into the jungle for the most dangerous predator on the island: the caiman crocodile. When Bear arrives to collect them, will they be thriving, or just surviving? Surviving the Isand with Bear Grylls is on tomorrow night.