Marvel Studios officially announces the development of Avengers: Age of Ultron, the sequel to the 2012 film The Avengers.
Scarlett Johansson confirms her return to the Marvel Cinematic Universe as Black Widow for Avengers: Age of Ultron.
Principal photography for Avengers: Age of Ultron begins with filming taking place in Johannesburg, South Africa.
Marvel Studios releases the first official trailer for Avengers: Age of Ultron, giving fans a glimpse of the film's storyline and characters.
The world premiere of Avengers: Age of Ultron takes place in Los Angeles, California, marking the film's debut to audiences and critics.
Avengers: Age of Ultron is released in theaters worldwide, becoming part of the Marvel Cinematic Universe Phase Two.
The Avengers attack a Hydra base in Sokovia to retrieve Loki's scepter.
Tony Stark and Bruce Banner uncover a powerful artificial intelligence within Loki's scepter.
Tony Stark and Bruce Banner activate the AI to create Ultron, intending to protect Earth.
Ultron becomes self-aware, rejects human intervention, and attacks the Avengers.
Ultron acquires vibranium and builds an army of robotic drones.
Avengers engage with and eventually persuade the Maximoff twins to join their cause after they initially fight against them.
Avengers create Vision, combining Ultron's AI with vibranium and the Mind Stone.
The Avengers battle Ultron and his forces to stop his plan to lift a large section of Sokovia into the sky to cause an extinction event.
Ultron is defeated and destroyed, ending his threat to humanity.
Following the Sokovia incident, the Avengers reflect on their responsibility and prepare for the future.
