Unicron has been awakened by Shockwave, and destroys Lithone before heading to Earth. During his last period of activity, Unicron created a wave of heralds, now spread across the universe. One of these was Scourge, who reactivated Shockwave. Shockwave betrayed Scourge, who is now in the possession of Earth's authorities, as are the remains of Devastator and Superion. While the Autobots on Earth and Cybertron regroup, the Quintessons observe the situation. Meanwhile, on Junk, Wreck-Gar is building an army for Megatron.

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