Avengers Age of UltronIt's three on three in a brand-new "Avengers: Age of Ultron" clip, as Iron Man, Captain America, and Thor take on the titular villain and his two cohorts, Scarlet Witch and Quicksilver.

The three Marvel superheroes show up for a "friendly" chat. Ultron (voiced by James Spader) is trying to get his hands on vibranium for various nefarious purposes, but the heroes aren't about to let him have it.

"If you believe in peace, then let us keep it," Thor warns them. Well, Ultron really isn't interested in peace, and a battle breaks out.

"Avengers: Age of Ultron" opens in theaters May 1.