Union Academy: Battle For Earth

Many eons ago, Unicron and his loyal servants invaded Cybertron but were stopped by the thirteen original Primes. Years passed, and Unicron awakened from his long slumber, ready to attack. However, his powers were so weak that he couldn't move.

Scourge then abducted Christopher's father, Edward Kingsley (Optimus Prime), and imprisoned him for thirty-five years because they needed his power to revive Unicron. Unicron then invaded Elysium Prime to consume its core. But what Unicron didn't know was that Edward had a son, a son who would even have powers just like him. His son and his friends teamed up and stopped Unicron from consuming Elysium Prime. And they saved his father from unicron.

At first, it seemed the battle was over, but to their surprise, Unicron wasn't finished yet.