Intent on seeing the Cahulawassee River before it's dammed and turned into a lake, outdoor fanatic Lewis Medlock takes his friends on a canoeing trip they'll never forget into the dangerous American back-country.
Rancher Wil Andersen is forced to hire inexperienced boys as cowhands in order to get his herd to market on time but the rough drive is full of dangers and a gang of cattle rustlers is trailing them.