Director: Joss Whedon.
Humanity is on the verge of destruction. This time, people are threatened by Altron's artificial intelligence, previously created in order to protect the Earth from any threats. However, he considered humanity to be the main threat.
International Organization S.H.I.E.L.D. unable to cope with such a powerful enemy, and therefore they again turn for help to the Greatest Heroes of the Earth Avengers. However, Ultron is too strong, and there is a high probability that even they will not be able to stop the beginning of the approaching Age of Ultron, where there is no place for people.