Superman vs. Icon The original When World's Collide

Worlds Collide is the 1996 crossover between DC Comics and Milestone Comics, marking the first encounter between the two franchises.

The story deals with Fred Bentson, a mild-mannered postal worker living in the city of Dakota in the Milestone Universe. Having been exposed to residue from the Big Bang, the Mass Super-Empowering Event that created the likes of Static, he gained the ability to cross realities, being a mailman in the wonderful city of Metropolis in the DC Universe. However, this causes him to suffer from major insomnia as he doesn't actively sleep and he seeks help. His "help" ends up being worse as various figures seek to gain his increasing powers, only to transform him into the vicious god-like Rift. Can the heroes of two worlds work together to stop this being or is all of reality doomed to be a play-thing for a Reality Warper?