Written by LEN KAMINSKI, TOM DEFALCO, MARK GRUENWALD, ROY & DANN THOMAS, GERARD JONES, BOB HARRAS & LEN KAMINSKI. Penciled by PAUL RYAN, PAUL OLLIFFE, RIK LEVINS, DAVE ROSS, RURIK TYLER, JEFF JOHNSON, STEPHEN B. JONES, STEVE EPTING, GREG CAPULLO, CRAIG BRASFIELD, JOHN CZOP, DARREN AUCK & DAVE SIMONS. Cover by RON FRENZ. One galaxy's heroes are another's villains, and two galaxies' worth of them collide head-on - with the Avengers in the middle of a war whose repercussions will haunt them for years! The events that split and shook Earth's Mightiest Heroes to their foundations end here, and intergalactic boundaries aren't the only lines being drawn! Plus: The tri-galaxy war devastates Earth far more literally when we see 'What If the Avengers Lost Operation: Galactic Storm?'! Collects IRON MAN #279, THOR #446, CAPTAIN AMERICA #400-401, AVENGERS WEST COAST #82, QUASAR #34-36, WONDER MAN #9, AVENGERS #347 and WHAT-IF #55-56. 312 PGS.