Tucker, a retired cop, is asked by the FBI to assist in investigating a series of missing person's cases in National Parks Campsites throughout the Southeast. Traveling in his motorhome from park to park he is ideally suited for this case and soon becomes thoroughly involved. During his investigations he befriends a beautiful suspect and finds himself torn between his growing feelings for her and his fear that she is an accomplice or possibly a vicious serial killer. Tucker travels from National Park to National Park and eventually is able to solve the crime with the help of the FBI and local authorities. Action moves from the parks to the gambling mecca of Tunica, Mississippi with a brief stop in New Orleans. As time passes the case becomes more and more violent and eventually all of the main characters are involved in the action of the surprising conclusion.