The episode starts out at a historical Jurassic museum where Bulkhead knocks over every car in the parking lot. While learning about the history of Dinosaurs, a curious Bulkhead damages three of the robotic lizards (A Tyrannosaurus Rex, Pterodactyl and Triceratops) and a Tutor-bot.
While Professor Sumdac is in his lab, he discovers that Megatron is online. Assuming that he is a friend of the Autobots, he explains what happens and feels he needs to tell them. Megatron convices Sumdac that it would be a bad idea to explain how he got the idea for a robotic world without showing them and everyone how useful it could be. So Professor Sumdac works on repairing the dinosaurs using Cybertronian technology.
Meanwhile, Prowl begins to teach Bulkhead how to move swiftly without breaking things. When Bulkhead tries, he just trips up and lands on Prowl.
The new Dinobots are introduced to the public and all seems well... until Megatron takes control of them in order to attack the Autobots. Ratchet and Bumblebee hold them off until Sari uses her Key to help. When the flash disappears, the Dinobots are offline.
Megatron rants about how useless he is, trapped without a body when the Dinobots reawaken. Megatron soon realizes that they now have a spark of their own and, with the help of a repaired Tutor-bot, convinces the Dinobots that car and trucks, maining ones that transform into robots, are very bad. He then orders them to destroy the Autobots so he can create more Dinobots like them.
The Dinobots stike again, attacking any vehicle in sight, until they're lured away by the Autobots. Bulkhead finally decides to stop acting like Prowl and more like himself in time to throw all three Dinobots into the melting pavement. While keeping Megatron's existence a secret, Sumdac apologizes to the Autobots for the trouble he's caused. Then, he promises to melt the Dinobots down in the morning. This concerns Prowl, since he detects a spark within them.
Sumdac arrives the next morning to find that the Dinobots are missing. Prowl, with the help of Bulkhead, relocated the Dinobots to an island and added a hologram to prevent humans from finding them. Grimlock transforms to Robot Mode and likes what he sees.