Transformers / G.I. Joe

In 2004, Dreamwave Productions brought two of the '80s most iconic toy lines crashing together in a single explosive one-shot. Written by John Ney Rieber with striking, moody art by Jae Lee, this issue launched a shared universe where the Autobots and Decepticons' war on Earth intersects with the covert operations of G.I. Joe. While the series itself was brief, it stands as a pivotal moment in cross-company storytelling, planting the seeds for the enduring crossover legacy between these two franchises.