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. Some flashing lights sequences or patterns may affect photosensitive viewers.