An innocent rite of passage turns into a nightmare for four couples, exposing their secrets and risking the lives of their children. After passing the bittersweet parental milestone of putting her daughter, Sarah on the bus to sleep-away camp for the first time, Lena Trainor plans to spend the next two weeks fixing all the problems in her marriage. But when a second bus arrives to pick up Sarah for camp, no one seems to know anything about the first...