Batman: The Brave and the Bold — DC Comics
Issue: #18
Batman learns what "Life on Mars" is all about when he teams up with the mysterious Martian Manhunter in order to prevent an invasion from the red planet!
Creators: Harvey Richards, Hi-Fi, Michael Siglain, Michael Siglain, Heroic Age, Eric Jones, Rob Clark Jr., Landry Q Walker
Characters: Batman, Martian Manhunter, Kent Nelson, Commander Blanx, Malefic