First Official Plot Synopsis for The Avengers 2 Age of Ultron

Filming has wrapped on Joss Whedon's superhero blockbuster The Avengers: Age of Ultron, and now Marvel and Disney have revealed the first official plot synopsis for the sequel!

The description contains some interesting new nuggets of information, so read it all below (via Comic Book Movie):

"Marvel Studios presents Avengers: Age of Ultron, the epic follow-up to the biggest Super Hero movie of all time. When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and Earth's Mightiest Heroes, including Iron Man, Captain America, Thor, The Incredible Hulk, Black Widow and Hawkeye, are put to the ultimate test as the fate of the planet hangs in the balance. As the villainous Ultron emerges, it is up to The Avengers to stop him from enacting his terrible plans, and soon uneasy alliances and unexpected action pave the way for an epic and unique global adventure.

Marvel's Avengers: Age of Ultron stars Robert Downey Jr., who returns as Iron Man, along with Chris Evans as Captain America, Chris Hemsworth as Thor and Mark Ruffalo as The Hulk. Together with Scarlett Johansson as Black Widow and Jeremy Renner as Hawkeye, and with the additional support of Samuel L. Jackson as Nick Fury and Cobie Smulders as Agent Maria Hill, the team must reassemble to defeat James Spader as Ultron, a terrifying technological villain hell-bent on human extinction. Along the way, they confront two mysterious and powerful newcomers, Wanda Maximoff, played by Elizabeth Olsen, and Pietro Maximoff, played by Aaron Taylor-Johnson, and meet an old friend in a new form when Paul Bettany becomes Vision.

Written and directed by Joss Whedon and produced by Kevin Feige, Marvel's Avengers: Age of Ultron is based on the ever-popular Marvel comic book series The Avengers, first published in 1963. Get set for an action-packed thrill ride when The Avengers return in Marvel's Avengers: Age of Ultron on May 1, 2015."

The "uneasy alliances" bit is interesting. Could this be a reference to Quicksilver and Scarlet Witch reluctantly working with the Avengers?

What do you think of the description? Let us know in the comments section.