They’ve battled for the heart of a nation for years — now, the Joes and Cobra have been thrown into the nation’s past to battle for the future of the Earth! Beach Head, Roadblock, and the Baroness find themselves in 1930’s Chicago, in the middle of a mob war. Can they maintain their fragile alliance long enough to locate the displaced Transformers? While on Cybertron, where a Transformer civil war rages, Shockwave is mere hours away from accessing the portal that will allow him and his legions to invade earth. If the Joes and Cobras don’t succeed before Shockwave does, there won’t be a nation — or a planet — to battle over…