Toby lives his life disconnected from the world. When his father passes away in a carjacking incident, he is struck with such an immense feeling of guilt that he enrolls himself in "Lost and Found," a program that promises behavioral rehabilitation. He is then put on an uninhabited island where he is to stay for three days and three nights. Shortly after arriving, however, he meets a mysterious girl named Madeleine and quickly realizes that the island is far more dangerous than it seems.