Although the war on Earth has ended, the war between Transformers has not. Red Spider flies back to Cybertron, planning to return to Earth with an army for a final battle. The Autobots discover that Megatron's body is missing, turns out it has been stolen by Shockwave, who subsequently revives Megatron, determined to begin his revenge. Meanwhile, Red Spider is also leading reinforcements from Cybertron, and at this time the Autobots have enhanced their combat capabilities, a big battle is inevitable...