Commander Corry and Cadet Happy resume their search for the lost treasure of the Carnigans, while trying to avoid a gang of criminals who plan to steal the gold and jewels. Corry manages to unravel one of the Carnigans riddles concerning the treasure's location only to find it leads to another that warns of death and destruction should anyone but a member of that civilization attempt to remove it from its hiding place. (thetvdb.com)