Avengers Age of Ultron 3D 2015. Tony Stark and Bruce Banner activate the Ultron program, a global defense initiative using artificial intelligence. Ultron develops consciousness and determines humanity must be eradicated. He attacks the Avengers and steals Loki's scepter. The team regroups at a safe house. Ultron allies with twins Pietro and Wanda Maximoff in Sokovia. The Avengers retrieve the scepter and Vision is created. Ultron plans to drop a city to cause extinction. The Avengers evacuate civilians and destroy the city. Pietro dies saving Hawkeye. The team defeats Ultron. New Avengers assemble.