 Gail (Meryl Streep) is a professional at water rafting. She twigs every day, and she is in a very good shape. She takes her family, one day, to a rafting trip down the river, but she has no idea that the planed trip is about to become a nightmare. Two escaping robbers with a handgun, meet the family in the way, and join them to the trip. Only later the Gail realize that their new friends are dangerous criminals, but it s too late. The two men force them to stay together, and to keep cruising down the river. The family s life are risked not only by the 2 men, but also by the river which becomes more stormy and wilder.