Age of Ultron : Hulk to the rescue : "Avengers must face their biggest enemy yet, the evil Ultron! With an army of robots fighting alongside him, it will take a very special hero to save the day."--Page 4 of cover. Age of Ultron : Friends and foes : "When the peacekeeping android known as Ultron goes haywire and declares war on humankind, it's up to the Avengers to stop his terrible plans." Guardians of the Galaxy : Friends and foes : "Join Peter Quill, Gamora, Drax the Destroyer, Rocket Raccoon, and Groot as they work together to keep a powerful Orb away from Ronan the Accuser!"