The Herculoids - Season 1 - Eps 28: The Crystalites
A meteor crash-lands on Azmot and transforms into a giant crystalline object. Zandor investigates and is attacked by the Crystalites, while Tara and Dorno are captured in crystal cells. Zandor, Gloop, and Gleep steal uniforms, sneak into the fortress and free Dorno and Tara. Gloop and Zok destroy Kryton's ship and he is defeated.
About The Herculoids

Title: The Herculoids
First Air Date: 1967-09-09
Last Air Date: 1968-01-06
Status: Ended
Rating: 7.2/10 (from 23 votes)
Language: EN
Seasons: 2
Total Episodes: 36
Network: CBS
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy
Production Companies: Hanna-Barbera Productions
Synopsis
Somewhere out in the deep space live the Herculoids. Humanoid Zandor, along with his wife Tara and son Dorno, lead a group of unique creatures: Zok the flying dragon, powerful simian Igoo, rhinoceros hybrid Tundro and two protoplasmic wonders named Gloop and Gleep. Together, they use their diverse super strengths to defend their utopian planet against attack from sinister invaders.
Cast

Don Messick
Gloop / Gleep

Virginia Gregg
Tarra

Mike Road
Zandor

Sparky Marcus

Ted Cassidy

Ted Eccles
Dorno