For years the Marvel Family have wondered what happened to them on the day before they and others were caught in Sivana’s Suspendium trap. Now a time traveler arrives from the future, explaining the mystery of the missing day and seeking help from America’s other greatest heroes! Witness the secret origin of Shazam’s Squadron of Justice when that fabled team unites once more to stop Zotan the King of Time from changing history as they know it! Introducing time traveler Steffi Swift!
by Libbylawrence, partially adapted from Superman #276 by Elliot S! Maggin and Curt Swan
Summoned by an old medicine man who reminds her of the old wizard Shazam himself, Mary Marvel travels to a parallel Earth decades ago in the past, where she fights to save the counterparts of the Marvel Family from the clutches of the nefarious Monster League of Evil! But even if she succeeds in saving the Thunder Family — Captain Thunder, Mary Thunder, and Captain Thunder Junior — can she possibly also save their world from being eventually erased from existence in the Crisis on Infinite Earths?