Good intentions wreak havoc when Tony Stark unwittingly creates Ultron, a terrifying A.I. monster who vows to achieve "world peace" via mass extinction. Now the Avengers must defeat Ultron and save mankind in Marvel's Avengers: Age of Ultron - Best Buy Exclusive SteelBook 3D + 2D Blu-ray + Digital Set.

Marvel Studios unleashes its latest global phenomenon in the Marvel Cinematic Universe - Marvel's Avengers: Age of Ultron. Good intentions wreak havoc when Tony Stark (Robert Downey Jr.) unwittingly creates Ultron (James Spader), a terrifying A.I. monster who vows to achieve ''world peace'' via mass extinction.

Now Iron Man, Captain America (Chris Evans), Thor (Chris Hemsworth) and The Hulk (Mark Ruffalo) - alongside Black Widow (Scarlett Johansson), Hawkeye (Jeremy Renner) and Nick Fury (Samuel L. Jackson) - must reassemble to defeat Ultron and save mankind . . . if they can! This action-packed adventure is a mind-blowing blast!