Injustice: Ground Zero — DC Comics
Issue: #5
Old lovers are reunited--sort of--when Harley meets the Joker from the other Earth. And then he wants to meet her gang.
Creators: Pop Mhan, Rob Levin, Wes Abbott, Brian Buccellato, Christopher Sebela, Ben Oliver, Jim Chadwick, J. Nanjan
Characters: Batman, Superman, Joker, Harley Quinn, Damian Wayne, Hal Jordan, Hawkgirl, Larry, Perry, Doomsday