Collects Issues #1-4! During the Great War on Cybertron, one of the Autobots' fallen heroes was Optimus Prime's best friend-IRONHIDE. What does that have to do with the fate of the planet today? Find out in this all-new miniseries by TRANSFORMERS writer Mike Costa and the phenomenal Casey Coller. You didn't really think his death was just some stunt with no ramifications, did you?