While preparing for a party at Avengers’ Tower, THE AVENGERS (IRON MAN, CAPTAIN AMERICA, BLACK WIDOW, HAWKEYE, THOR, HULK and VISION) notice Iron Man acting strangely. When Iron Man volunteers to go out and get more ice, they find it odd: when has Tony every volunteered to get anything? Suddenly, ULTRON appears on a screen: he’s taken control of Iron Man! To make matters worse, Ultron takes over all the versions of Iron Man’s armor and they fly off! The Avengers must now fight one of their own, and they’re not sure what to do! Cap and Thor lead the charge, but can’t fend off Iron Man and Ultron’s Minions. Meanwhile, Black Widow, Hawkeye and Hulk track down a signal that seems to be controlling Iron Man from a castle in the “Little Sokovia” section of New York. There they fight HYDRA and BARON VON STRUCKER and learn that YELLOWJACKET is the “bug” that infected Iron Man’s suit for Ultron. To help break Iron Man free from Ultron’s control, the Avengers call in their own bug…ANT MAN! Finally, the Avengers confront Ultron and his Ultron Minions as they attack Avengers’ Tower. Ultron’s ultimate plan: use all the data/stuff they’ve stolen to free the newly rebuilt IRON LEGION, destroy the Avengers, and control the world. Tony dons the hastily repaired Hulk Buster Armor and it’s on! It’s a huge battle as the Avengers try to save their beloved HQ and defeat Ultron. Will they succeed? And, more importantly, can their party be saved after Ultron tries to take down their Tower?