Superman's former protégé, Boy Thunder, is in danger and the only way to rescue him is to bridge the World's Finest universe with one that includes a jaded Superman, a broken Batman, and a war-hungry Wonder Woman....this is the world of Kingdom Come. Up against the villainous Magog, the World's Finest team find themselves trapped in a world on it's way to an apocalyptic future. Will those who once were friends become foes and what will it take to save both universes?

Collects Batman/Superman: World's Finest #20-24