there was a story called robots vs zombies from Idw have'nt read it yet .
But, on this earth there was a zombie attack and it was held off by a robot army .
the military of course locates ground zero for the zombie attack and finds the robot baase as well as a interdimentinal portal which was opened to a zombie infested world. as goverment officals and military brass checks it out . the portal is opened a shield is in place to hold the zombies .
the shield fails and the zombies attack and are led by something called the hunger.
the military semds a special team in couple vampires and zombie specialist.
they reactivate the robots to fend off the zombies but now with the hunger leading
them they can infect robots.
It is a inter promotional crossover in IDW .
A must read if you are a zombie , transformer , g.i. joe ghostbusters or a star trek fan.