A wormhole accidentally sends the Joes and Cobras to Cybertron at the same time it zaps several Transformers on Cybertron and sends them to different points in Earth's history. This time stream dispersal will destroy the Earth, if the Transformers are not returned to Cybertron. Different groups of Joes and Cobras are sent back in time to retrieve the Transformers.
Beach Head, Roadblock, Baroness and a Viper are back to 1930's Chicago to retrieve Optimus Prime and the Stunticons: Drag Strip, Breakdown, Dead End, Motormaster, and Wildrider