The reaper and the robot! When two of the greatest foes ever faced by Earth's Mightiest Heroes join forces, it spells doom for the West Coast Avengers! If the team can somehow triumph over the deadly duo of the Grim Reaper and Ultron, who will be left in a revamped roster? And will there be any room for the U.S.Agent? Not if Hawkeye has his way! Then, Julia 'Spider-Woman' Carpenter and the Living Lightning join the fight against the diabolical Doctor Demonicus and the Pacific Overlords!