Sonia wants to introduce Franck to her father, Jean-Pierre, the manager of an eco-hotel in Brazil. The whole gang gets together there for a dream vacation. One morning, the boys go on an excursion into the Amazon rainforest. Jean-Pierre entrusts them with his cantankerous mother, Yolande. The next day, they've all disappeared… All that's been found is the small camera they took with them. Sonia and her father watch the video to try and find them…