The Avengers, Vol. 1

The Avengers are attacked by Ant Man, who seems to have no recollection of anything that took place after "Avengers, Vol. 1 #1." They defend themselves without fighting back terribly hard, and manage to subdue their friend. They attempt to call past Avengers to jog his memory, but Thor is in Asgard, Quicksilver is in the Great Refuge, and Hawkeye is busy introducing the Two Gun Kid to the wonders of halter tops. Before they can get Hank Pym back to his old self, Ultron attacks.