DC Universe Online Legends — DC Comics
Issue: #21
In a misguided attempt to save the Earth, Batman launches a chemical attack on an alien race. Will Hal Jordan and the Green Lantern Corps arrive in time to stop the genocide?
First appearances: Graddaa
Creators: Ben Abernathy, Kristy Quinn, Marv Wolfman, Rex Lokus, Wes Abbott, Bruno Redondo, Randy Mayor, Mike Miller
Characters: Batman, Joe Chill, Martha Wayne, Thomas Wayne, Hal Jordan, Jimmy Olsen, John Stewart, Lex Luthor, Perry White, Brainiac, Arisia, Kilowog, Kyle Rayner, Tomar Tu, Graddaa