The Transformers - Season 3 - Eps 26: Call of the Primitives
The evil Primacron plans to use an energy being named Tornadron to defeat the Transformers and help in his universal conquest. Meanwhile, the animal form Transformers leave during a battle between Autobots and Decepticons upon getting a strange signal. The signal was apparently sent by Primacron's own assistant, who believes this group of ""Primitives"" can defeat Primacron.
About The Transformers

Title: The Transformers
First Air Date: 1984-10-06
Last Air Date: 1987-11-11
Status: Ended
Rating: 7.837/10 (from 386 votes)
Language: EN
Seasons: 5
Total Episodes: 95
Network: Syndication
Genres: Animation, Kids, Action & Adventure, Sci-Fi & Fantasy
Production Companies: Hasbro, Sunbow Productions, Marvel Productions, Toei Animation
Synopsis
The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can transform into vehicles and other objects.
Cast

Peter Cullen
Optimus Prime (voice)

Frank Welker
Galvatron / Chromedome (voice)

Richard Gautier
Hot Rod (voice)

Jack Angel
Ultra Magnus / Cyclonus (voice)

Susan Blu
Arcee (voice)

Corey Burton
Spike Witwicky (voice)

David Mendenhall
Daniel Witwicky (voice)

Victor Caroli
Narrator (voice)

Stan Jones
Scourge (voice)

John Stephenson
Kup (voice)