Fire on the Mountain The Decepticons plan to use an ancient crystal as an energy source for their new weapon. But the Autobots detect the energy source and the Decepticon activity and the entire Autobot force comes to restore the crystal to its rightful place. War of the Dinobots When the Dinobots created by the Autobots get out of control and ally themselves with the Decepticons there's danger in store. The Autobots must design two more Dinobots to bring the others back under their control. But can they succeed against the Dinobot's strength? The Ultimate Doom (Part 1) The Decepticons join forces with an evil doctor in order to use his hypno-chip to create an army of mindless human slaves. They plot to build a Space Bridge which would transport Cybertron into Earth's orbit, releasing Energon. But as the Autobots attack, Cybertron passes through the Space Bridge and Earth's weather turns stormy. The Ultimate Doom (Part 2) As the Autobots battle the elements and the Deceptions, the slaves are lost forcing the Decepticons to return to their base to capture more. Optimus Prime sends the Autobots to rescue Sparkplug who has been captured but his hypno-chip is activated, alerting the Decepticons to the Autobot presence. The Ultimate Doom (Part 3) The Autobots begin to build a device that will deactivate the hypno-chips and follow Megatron to his island outpost as the slaves load the Energon cubes on his starcruiser. As the slaves are released the Autobots attack. Megatron tries to escape but his starcruiser is shot down and explodes, forcing Cybertron back into orbit. But is this the end of Megatron or will he get revenge?