Season three of the cartoon series The Transformers opens with an elaborate five-part story (eminently suited to be transformed into a single two-hour TV movie), The Five Faces of Darkness, set largely on Cybertron, home planet of the warring Autobots and Decepticons. This plotline serves to introduce a new human ally for the good-guy Autobots, Marrisa Fairborne of the Earth Defense Command. In other developments this season, the Autobots earthling chum Spike, long married to a girl named Carly, inadvertently involves his son Daniel in the neverending Autobot-Cybertron conflict; the ghost of Decepticon Starstream goes on a relentless search for a new host body; and several new groups of characters are brought into the action, the better to sell more toys for the Hasbro company: among these are the Technobots, the Junkions, and the Quintessons. The season ends with a two-parter wherein Autobot mentor Optimus Prime, long presumed dead, makes a spectacular return in an all-out final(?) assault against the despicable Decepticons. ~ Hal Erickson, All Movie Guide