Superman vs. Shazam! #[nn]

In "When Earths Collide!", the fate of two worlds hangs in the balance as the immortal Martian wizard Karmang unleashes a cosmic plan to merge Superman’s Earth with Captain Marvel’s, using their combined power to free his imprisoned people. With Black Adam and a sand creature version of Superman from Quarrm aiding the scheme, the heroes must overcome their differences and rally together—aided by Supergirl, Mary Marvel, and even the reluctant Steve Lombard—to stop Karmang before both Earths are consumed.

When Mr. Mxyzptlk swaps Superman’s powers and costume with Captain Marvel’s, the two heroes must navigate each other’s abilities while unraveling the imp’s latest prank. With Jimmy Olsen caught in the chaos and a mysterious alliance forming between Mr. Mind and the River-Rat Gang, the situation takes a surreal turn—especially when old memories of Mary Marvel and Supergirl surface in flashbacks.

In a wild crossover that blurs the lines between worlds, Superman and Captain Marvel find themselves pulled into a surreal alternate reality when Mr. Mxyzptlk, joined by the sinister Mr. Mind and the monstrous King Kull, hijacks the Rock of Eternity. Trapped in Hoppy the Marvel Bunny’s universe, the heroes must navigate chaos and deception as old enemies resurface and alliances shift—only to face a threat that could unravel everything they’ve fought to protect.

When Black Adam breaks free from imprisonment and lands on Superman’s Earth, chaos follows. Superman calls upon Captain Marvel to stand against the ancient warrior, but it’s the Earth-1 version of Billy Batson who holds the key—using a trick from the comics, he makes Black Adam utter Shazam’s name backwards, triggering a shocking transformation.

In "With One Magic Word," the Marvel Family—Captain Marvel, Captain Marvel, Jr., and Mary Marvel—face their greatest threat when Dr. Sivana steals Shazam's magic lightning to amplify his own power and crush the heroes. With Captain Marvel imprisoned at the Rock of Eternity, Sivana turns his sights on Superman, accidentally sending the Earth-1 hero to Earth-2 and setting a deadly trap on Earth-1. As the Elders guide Captain Marvel’s escape, he must reach Superman in time—before Sivana’s plan reaches its final, devastating stage.