For the first time in their lives they are trying to get grounded.  Two boys from a small town find their courage tested when they accidentally stow away aboard an airplane owned by the mob.  Soon they find themselves airborne over the Arizona Desert and, after hours in the air, the boys unwittingly discover a bomb in the luggage compartment.  When they burst into the cabin to report their discovery, they find that everyone has bailed. 
The boys must take the controls and land the plane, but they soon realise that their troubles have only just begun!