| 2 | M
| 3 | 4
Than Meets the Eye 1
More Than Meets the Eye 2
More Than Meets the Eye 3
Transport To Oblivion
Roll For It
Divide and Conquer
Fire in the Sky
Fire on the Mountain
War of the Dinobots
Ultimate Doom 1
Ultimate Doom 2
Ultimate Doom 3
Countdown to Extinction
A Plague of Insecticons
Heavy Metal War
Investigating tremors within the Volcano, the Autobots discover the fossils of dinosaurs. The Autobots are fascinated by the giant beasts.
Meanwhile, at a waterfall based Hydroelectric Plant Soundwave and Reflector complete their data gathering mission and return to base.
Hound and Spike visit a Museum, so that hound can make holograms of more Dinosaurs. Ratchet and Wheeljack begin designing three Dinobots, based off of a tyrannosaur, a triceratops and an apatosaur.
In his undersea headquarters, Megatron orders the Decepticons to attack the Hydroelectric falls, as Wheeljack and Ratchet unveil the Dinobots, Grimlock, Slag and Sludge. The Dinobots have been given tremendous power and low intelligence, similar to actual Dinosaurs, which causes them to rampage across the Autobot base and damage Teletran One. The Autobots fight vainly to stop the Dinobots, who appear to be invulnerable.
Wheeljack manages to use a Magnetic Inducer to force the Dinobots to transform into Robot Mode, where they are subdued. Optimus Prime declares that the Dinobots are too dangerous and has them sealed up in a cavern.
The Decepticons begin their attack upon the Hydroelectric plant, and, due to Teletran One's damage, the faculty cannot contact the Autobots for help. On scout patrol, Hound discovers the Decepticons and alerts the Autobots. Optimus Prime leads all of the Autobots to the Plant, except Bumblebee, Ratchet and Wheeljack, who are left on guard and repair duty.
The Decepticons continue to harvest the waterfalls' energy as the Autobots arrive. The Autobots and Decepticons fight, and Megatron blasts the Autobots into the fast moving river. Megatron then captures the wounded and wet Autobots. Bumblebee, disobeying Prime's orders arrives at the falls and takes Spike back to Wheeljack and Ratchet.
Undermanned, Wheeljack proposes that the Dinobots, with upgraded brains, could be used to rescue the Autobots, despite Optimus' orders that they are too dangerous. The upgraded Dinobots and remaining Autobots rush to save the Autobots.
The Dinobots prove to be more than a match for the Decepticons and force them to retreat, while Wheeljack repairs and recharges the fallen Autobots.
After their rescue, Optimus Prime declares that the Dinobots will be allowed to remain among the Autobots.