In this special episode, Bear Grylls takes an in-depth look at how the castaways survived in the latest series of The Island with Bear Grylls. Completely alone, filming everything themselves, with only a handful of basic tools and the clothes they stood up in, Bear's eight men and eight women not only had to survive five gruelling weeks in a vicious tropical storm season, they also had to cope with food being particularly scarce due to the uncertainty of fishing stock caused by the El Nino weather system. Bear returns to meet the men and women who made it through the experiment and sees first-hand how they managed to survive - as individuals and as part of a mixed sex group. He hears their reflections on their time on the island and shares his thoughts on how they coped with the extremes.