Ratchet and Wheeljack decide to build Buster Witwicky an exo-suit to help protect himself whilst under attack from the Decepticons. Upon completion, Wheeljack calls Optimus Prime to show him his handiwork. Optimus Prime however, is dismayed by the Engineer's misguided actions toward the well-being of Buster, and orders the suit to be destroyed. Buster Witwicky has other ideas though...