After fooling Primus with their offer of peace, The Mutants finally succeed in conquering the planet. Still the joy of the Invaders invaders holds itself within limits, because could He-Man and some others have escaped into the underground, where they continue to offer embittered resistance to the conquerers...
Elenco: Scott McNeil , Ted Cole , Michael Donovan , Campbell Lane , Mark Hildreth , Venus Terzo , Alvin Sanders , Don Brown , Doug Parker , Garry Chalk .