Avengers Age of Ultron is a 2015 American superhero film based on the Marvel Comics superhero team the Avengers, produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures. It is the sequel to 2012s The Avengers and the eleventh film in the Marvel Cinematic Universe MCU. The film was written and directed by Joss Whedon and features an ensemble cast that includes Robert Downey Jr., Chris Hemsworth, Mark Ruffalo, Chris Evans, Scarlett Johansson, Jeremy Renner, Don Cheadle, Aaron TaylorJohnson, Elizabeth Olsen, Paul Bettany, Cobie Smulders, Anthony Mackie, Hayley Atwell, Idris Elba, Stellan Skarsgrd, James Spader, and Samuel L. Jackson. In Avengers Age of Ultron, the Avengers fight Ultron, an artificial intelligence obsessed with causing human extinction.
Stark and Banner discover an artificial intelligence within the scepters gem, and secretly use it to complete Starks Ultron global defense program. The unexpectedly sentient Ultron, believing he must eradicate humanity to save Earth, eliminates Starks A.I. J.A.R.V.I.S. and attacks the Avengers at their headquarters. Escaping with the scepter, Ultron uses the resources in Struckers Sokovia base to upgrade his rudimentary body and build an army of robot drones. Having killed Strucker, he recruits the Maximoffs, who hold Stark responsible for their parents deaths by his weapons, and go to the base of arms dealer Ulysses Klaue to obtain Wakandan vibranium. The Avengers attack Ultron and the Maximoffs, but Wanda subdues them with haunting visions, causing the Hulk to rampage until Stark stops him with his antiHulk armor.2A worldwide backlash over the resulting destruction, and the fears Wandas hallucinations incited, send the team into hiding at Bartons safehouse. Thor departs to consult with Dr. Erik Selvig on the meaning of the apocalyptic future he saw in his hallucination, while Romanoff and Banner plan to flee together after realizing a mutual attraction. However, Nick Fury arrives and encourages the team to form a plan to stop Ultron. In Seoul, Ultron forces the teams friend Dr. Helen Cho to use her synthetictissue technology, together with vibranium and the scepters gem, to perfect a new body for him. As Ultron uploads himself into the body, Wanda is able to read his mind discovering his plan for human extinction, the Maximoffs turn on Ultron. Rogers, Romanoff, and Barton find Ultron and retrieve the synthetic body, but Ultron captures Romanoff. ........
Source: Wikipedia