When the Silver Men arrive to herald the coming of Gah Lak Tus, Nick Fury enlists the aid of Professor Xavier and Reed Richards. Gathering their three teams together and with help from Mahr Vehl and Vision, the allied forces make one desperate and united front to ward off the threat of annihilation.
This series concludes the Ultimate Galactus trilogy begun in Ultimate Nightmare and continuing in Ultimate Secret.
Gah Lak Tus
Ultimate Galactus - Vol. 3: Extinction
Ultimate Extinction #1-5