The series that replaced The Ultimates 3 after the Ultimatum mini-series. The covers of the Ultimate Avengers series break this into three six issue mini-series but per the indicia and the continued numbering all 18 issues are actually one volume. The series ended with the 18th issue.
From it's 6th issue the series ran simultaneously with Ultimate Comics: New Ultimates. Both series ended in march 2011 and where replaced with a mini-series named Ultimate Avengers vs. New Ultimates.
Guess who’s back!! That’s right, kids, Mark Millar and superstar artist CARLOS PACHECO blast into the Ultimate Universe for a mind-blowing, heart-pounding and gut-wrenching event of epic proportions! When a highly-classified secret threatens Captain America, only the newly-returned Nick Fury has the tools to bring ‘em in! As the first of a series of blockbuster arcs begins: Project Avengers is a go!
Non-U.S. Collected Editions