Somewhere out in space live the Herculoids: Zok the laser-ray dragon, Igoo the giant rock ape, Tundro the tremendous. and Gloop and Gleep, the formless, fearless wonders! With human friends Zandor, Tara, and Dorno, they protect their planet Quasar from sinister invaders! All-strong! All-brave! All-heroes! These are the Herculoids!