Superman / Batman #49

It's the final chapter of the epic search for Kryptonite, as the Man of Steel must confront an old and dear friend who's harboring the "K" and threatening to set off "Kryptonite dirty bombs" around the world. Can the Dark Knight prevent this before Earth is made uninhabitable for all Kryptonians?

Image: Superman / Batman #49 - DC Comics

Superman / Batman #49