This is the conclusion of the legendary Age of Apocalypse story-line. The story started in X-Men Alpha and continued in the revamped X-tiles (Astonishing X-Men, Amazing X-Men, Generation NeXt, X-Man, Gambit and the Externals, X-Calibur and Factor-X).
Collected in X-Men: Age of Apocalypse: Omega.
Non-U.S. Collected EditionsColeccionable Marvel Héroes - La Patrulla-X: La Era de Apocalipsis - Omega (Spanish)
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/x-men-omega/4050-18093/).