The worlds of "G.I. JOE" and "The Transformers" combine in this first volume of crossovers. This title contains the 4-issue "G.I. JOE and The Transformers" limited series, plus issues numbererd 139-142 of Marvel's "G.I. JOE: A Real American Hero". Megatron and Cobra versus the Joes and the Autobots - who will come out on top?