Sharon, a single mom and an avid white water rafter, takes her daughter, Cassie, on a trip down a river near gorgeous Yosemite. Along the way, they encounter some men who are not experienced rafters that need to find their friends downstream. Later, Cassie witnesses one of the men, Frank, threaten another in their group about money. She discovers that they are armed robbers. The men then physically force mother and daughter to take them down the river to find the money. The rafting trip becomes even more dangerous as they must tackle the ferocious river and the tough criminals with their lives at stake every second of the way.