Captain America ponders the mystery of the Winter Soldier and enlists Nick Fury’s aid to find him when the Red Skull escapes from prison and massive robots – the Sleepers – arise as part of a contingency plan by the founder of HYDRA to destroy Washington, D.C.
A mysterious explosion seemingly kills Hank Pym in his college laboratory, but as the Avengers and their friends mourn the loss of their fallen comrade-in-arms, a fearless new vigilante calling himself Yellowjacket – endowed with the same powers and technology as Ant-Man/Giant-Man and Wasp – begins taking out the members of the Serpent Society.
The Avengers are ambushed and captured, one by one, by Ultron’s team of synthezoid Avengers as part of the wayward android’s plan to rid the world of “flawed” humans, perfect himself, and construct a mate.
