After the world finds out that Magento is alive and living at the X-Mansion, the Ultimates are sent to investigate.
Collected EditionsUltimate X-Men Collection Volume 3Ultimate X-Men: Ultimate WarUltimate X-Men: Ultimate Collection Book 3Non-U.S. Collected EditionsColeccionable Ultimate - X-Men 4: Fuego Infernal y Azufre (Spanish)Marvel Deluxe. The Ultimates vs. Ultimate X-Men - El retorno del rey (Spanish)
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/ultimate-war/4050-20075/).
