A GROUP OF FUN-LOVING TEENAGERS TAKE JOBS AT A RECENTLY RE-OPENED SUMMER CAMP, UNAWARE OF THE CIRCUMSTANCES THAT HAD LED TO ITS CLOSURE: THE DROWNING OF A YOUNG BOY NAMED JASON AND SUBSEQUENT MURDER OF TWO COUNSELLORS OVER TWENTY YEARS BEFORE. NO SOONER HAS THE CAMP RE-OPENED FOR BUSINESS THAN THE KILLING BEGINS AGAIN, AS THE TEENS ARE PICKED OFF ONE BY ONE.