Age of Ultron Wolverine: To free Earth from the control of Ultron, Wolverine must go back in time to kill Ultron's creator Henry Pym, a.k.a. the Avenger Ant-Man. But killing Pym may lead to a worse future than the one Wolverine has just left.
Ultron Drone: While Ultron himself sits in his empire in the distant future, his drones have established a beachhead in the present day, purging humanity via orders from the future, relayed through the body of the Vision.