Four friends take an overnight canoe trip to celebrate their last year of camp together. 14-year-old Steph is deathly afraid of water, and is only persuaded to go when her brother Jonah agrees to be their guide. But their fun-filled adventure takes a dark turn when an accident claims Jonah's life. The girls are suddenly stranded - lost and alone in the wilderness. It doesn't help when Steph insists that they bring Jonah's body along, making their uncertain journey home all the more perilous.