The Transformers - Season 3 - Eps 29: The Return of Optimus Prime (1)
While testing a new ship alloy, Jessica Morgan and Gregory Swafford (who hates Transformers) stumbled upon the ship Optimus Prime was on and saved him. Some time afterward, Jessica gets hurt in a battle between Protectobots, Technobots and Terrorcons, causing her father and Gregory to plot revenge. They use Optimus to lure the Autobots into a trap, getting them infected with Hate Spores which make them go berserk. As the infection spreads, Sky Lynx seeks out a Quintesson that could bring Optimus back to life.
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)