Esta épica saga se adentra en el corazón del tiempo y la realidad mientras una fuerza malévola intenta reescribir la historia misma. Héroes de todos los rincones del cosmos deben unirse para combatir un futuro fracturado, luchando para salvar a su universo de la aniquilación. Sé testigo del caos temporal, las traicioneras paradojas y los sacrificios necesarios para restaurar el equilibrio de la línea de tiempo.
Superman created by Jerry Siegel and Joe Shuster; Superboy created by Jerry Siegel, by special arrangement with the Jerry Siegel family; Supergirl based on the characters created by Jerry Siegel and Joe Shuster.
"Everything you know about the DC Universe is about to be affected. The universe will be shaken to its very foundations... and then rebuilt. In 1985, DC Comics dramatically altered comics' original universe with Crisis on Infinite Earths - an unforgettable, defining event in comics history that streamlined DCU continuity forever. Nine years later, the heroes of the DCU found the temporal fabric of their new reality unravelling and the biggest threat since the Crisis was about to be revealed." -- Page [4] of cover.