The series revolves around two types of transforming robots who landed on Earth during the Kryptonian War, and participate in the battle that has the destiny of keeping the planet in balance.
In the aftermath of a brutal war between two factions of robots, the Autobot army faces a difficult test when Spike is gravely injured in a battle with the Decepticons. Sparkplug resorts to his new invention, Autobot X, to save Spike's life, but it is a risky solution.
A year has passed since Rodimus Prime became the Autobots' leader, he hosts an intergalactic sporting event, but the celebration turns into chaos when Spike, Kup, and Ultra Magnus are kidnapped. Rodimus immediately suspects the Decepticons after the loss of their leader, Galvatron, before a cunning...Read more plan is revealed to try to restore him to power.
After some of the Autobots are captured, the rest team up with rebels who know the enemy's weak spots in order to free their comrades in a major epic battle.