Powerglide and Bumblebee discover a mysterious island, inhabited with pre-historic wildlife. At Autobots' headquarters, Wheeljack tries to train Grimlock, but the other Dinobots go berserk and nearly destroy the whole place. Optimus Prime decrees the Dinobots are to be banished to the strange island, where they will stay till they learn to control their powers, and they obey. Unfortunately, Laserbeak follow the Dinobots on their way, and discovers that the island contains massive energy sources: active volcanoes, oil pools and steaming geysers. When Megatron learns what Laserbeak discovered, the Decepticons fly to the island, and begin draining it of its energy. As a result, a strange time warp appears near the city library, where Spike and Bumblebee are, and from it emerges barbarian riding on mammoth. The mammoth rams at nearby building, makes it collapse on top of Spike and Bumblebee. Meanwhile, the Dinobots are training well, and when they see the Decepticons trespassed "their" ... Written by
Did You Know?
This part featured the first appearances of the Autobots Red Alert, Blaster, Grapple, Tracks, Hoist and Smokescreen, and the Decepticons Ramjet, Thrust and Blitzwing. They appear seemingly out of nowhere, though. See more
On the island of dinosaurs, we see a Pterosaur (possibly a Dimorphodon, judging by its appearance) abducting Spike and taking him to its nest. Firstly, the size and strength of the reptile in question here is immensely over-estimated. Secondly, the eggs found in its nest are each about the same size as the animal itself, which of course would be utterly impossible. Thirdly, the fairly wide-spread notion that Pterosaurs, if they were alive, would fly away with humans to eat them is also flawed, as they mostly ate insects, fish or other small animals, sometimes carcasses. See more
[summarizing the next part of the episode
As the Decepticons plunder the island resources, strange timewarps appear in the rest of the world, and the Autobots must find a way to stop Megatron. All in the exciting conclusion of DINOBOT ISLAND!