The Decepticons raid the Ark after tricking the Autobots with a distraction and Sparkplug gets captured. They use a device called a hypno-chip, created by a human named Dr. Arkeville, on Sparkplug to gain control over him. It is all apart of an evil plan to get a work force to create a new space bridge and bring Cybertron to Earth.

From the moon, Megatron manages to interfere with the radio transmissions on Earth. Blaster and Cosmos go to put an end to his plot as the other Autobots work to help those affected by the loss of radio transmissions.

Astrotrain and Blitzwing leave The Decepticons to do things their way, which includes capturing Megatron and Starscream and seizing control of a stadium.

Seeking revenge against Autobot and Decepticon alike, the Combaticons hijack the Space Bridge and use it to alter Earth's orbit, putting it on a collision course with the Sun. With the only means to get off-world damaged in battle, Optimus Prime and Megatron must race against time to stop the Combaticons before the Earth is destroyed.