Although the war on Earth has ended, the war between Transformers is far from over. Red Spider flies back to Cybertron, planning to return to Earth with an army for a decisive battle. The Autobots discover that Megatron's body is missing, originally stolen by Shockwave. Megatron is subsequently revived, determined to begin his revenge. Meanwhile, Red Spider is also leading reinforcements from Cybertron, and the Autobots enhance their combat capabilities at this time. A great battle is inevitable...