Challenge of the GoBots is an American animated series produced by Hanna-Barbera, based on the Gobots toy-line released from Tonka. The show originally debuted in animated form as a five-part miniseries, which aired in syndication from October 29 - November 2, 1984. A regular series followed the next year, premiering on September 16, 1985 as part of the new weekday/weekend morning programming block called The Funtastic World of Hanna-Barbera. The series was later rerun on the USA Cartoon Express.
Challenge of the GoBots (Season 1)

Battle For GoBotron (Episode 1)
Air date: 1984-10-29
Runtime: 30 min
Overview: Facing defeat on GoBotron, renegade GoBots Cy-Kill and his cronies Crasher and Cop-Tur, steal an experimental GoBot weapon called Astro-Beam. They plan to conquer Earth and use it as a staging ground in their war for GoBotron.

Target Earth (Episode 2)
Air date: 1984-10-30
Runtime: 30 min
Overview: The Guardians contend with the monster Zod when the Renegades attack the Arctic island of Stolbovoy to obtain the energy source sorium.

Conquest Of Earth (Episode 3)
Air date: 1984-10-31
Runtime: 30 min
Overview: Cy-Kill attacks the US military and uses the sorium to power a device that seizes control of the minds of every human on Earth.

Earth Bound (Episode 4)
Air date: 1984-11-01
Runtime: 30 min
Overview: With the world against them and Leader-1 captured by the Renegades, Turbo and Scooter go on the run.

The Final Conflict (Episode 5)
Air date: 1984-11-02
Runtime: 30 min
Overview: The reunited Guardians must break Cy-Kill's hold over Earth in order to save GoBotron from a mass-produced fleet of Zods.
