One remote island.
Who will make it out alive?
Alice and Caleb are dropped off on a remote west-coast island for a week-long treatment program called INTRO (Into Nature to Renew Ourselves). Alice, whose police-officer mother thinks she has a substance-abuse problem, and Caleb, who assaulted his abusive stepfather, are joined by six other teens and three staff: a psychologist, a social worker and an ex-cop. On the first night, one of the girls disappears from her cabin. There is a panicked search of the island, but she is nowhere to be found. Then the ex-cop gets sick and dies. The radio has been sabotaged, and there is no way to call for help. When the social worker also becomes ill, the kids decide to take matters into their own hands and track down a possible killer.