The Herculoids - Season 1 - Eps 20: Invasion of the Electrode Men
Volton and his Electrode Men fly into a volcanic crater, setting up a dome headquarters to take over Amzot. The Herculoids are easily defeating them until Volton takes Tara and Dorno prisoner. Zandor and the Herculoids have to wait until nightfall, when the Electrode Men's power is weakened.
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