Original Airdate: November 2nd, 1986
Series: The Transformers - Season 3
Summary: Testing a new heat resistant metal alloy, human scientist Jessica Morgan and her partner navigate their space vessel near a star going nova. Surprisingly, a nearby ship contains the body of legendary Autobot leader Optimus Prime, and the two bring it aboard, revealing that Prime did not perish at the climax of "Dark Awakening." Some time later, two Terrorcons steal a supply of the alloy from Morgan's father's laboratory on Earth, and Jessica is injured. Vowing revenge on any and all Transformers, Jessica's father releases space spores discovered during the nova experiment, infecting the two Decepticons with a violent madness. Soon this Hate Plague spreads across Earth, tainting Autobot, Decepticon, and Human alike.