The past few years have not been easy for Winifred Allen and she hopes the annual trip with her three best friends, Pia, Sandra, and Rachel, will be a welcome respite from her problems. Emboldened by Pia's adventurous spirit, Wini, despite her fears, agrees to whitewater rafting in the uncharted wilds of Maine. After a long car trip, the ladies meet their guide and embark on the challenging rapids. When a log capsizes their raft, there are deadly consequences. Struggling to survive, Wini and her friends are faced with terrible choices when they stumble onto a camp and the salvation they expect turns into more danger.