The Autobots clash with Decepticons Lugnut and Blitzwing, who come to Earth searching for their missing leader, Megatron.
Sari's new toy musical robot seems to have an evil streak-and the ability to control other machines-but Bulkhead is the only one who sees it. While the Autobots encounter a mysterious muscle car creating havoc in Detroit, Ratchet keeps flashing back to his "tour of duty" in the Great Autobot-Decepticon War.īumblebee's self-proclaimed title as "fastest thing on wheels" is threatened by Nanosec, a super speedster crook on a deadly mission that could destroy all of Detroit.īumblebee and Bulkhead's first Halloween turns even spookier when they encounter a giant spider that turns out to be the deadly Decepticon Blackarachnia. Professor Sumdac upgrades a trio of animatronic dinosaurs from a local theme park, but the creatures develop minds of their own and become rampaging Dinobots, bent on destroying the Autobots. The Autobots settle into their new home base, an abandoned automobile manufacturing plant, but the ancient assembly line machinery seems to have developed a mind of its own.Ī bio-engineering genius experiments with some of Bumblebee's hydraulic fluid and accidentally transforms himself into Meltdown, whose corrosive touch can melt anything-including Autobots! Optimus Prime and his small crew of Autobots come into possession of the AllSpark, a powerful Cybertronian artifact that attracts the attention of their long-forgotten enemies-the Decepticons-and sends them crashing to a strange and distant planet known as Earth.