"Avengers: Age of Ultron" isn't due to hit theaters till May 2015, but viewers will get a first glimpse of the movie during the broadcast of the October 28 episode of the series "Marvel's Agents of S.H.I.E.L.D".

The second installment of the Avengers franchise will see Tony Stark a.k.a. Ironman attempting to jumpstart an artificial intelligence program called Ultron in order to keep the peace, especially since the Avengers have gone their separate ways and, with S.H.I.E.L.D. destroyed by Hydra. However, Stark's plans take a turn when Ultron decides that human beings are enemies who need to be eliminated. In order to save the planet, the Avengers once again band together to destroy Ultron.

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Joss Whedon wrote and directed the movie.

Some of the important footage to be featured in the first clip are the twins Quicksilver and the Scarlet Witch played by Aaron Taylor Johnson and Elizabeth Olsen. The said twins are orphans from Europe who have hatred towards the world, which leads them to partnering with Ultron.

According to Whedon, the twins are certainly formidable enemies for the superheroes, saying,  "With the [first] Avengers, everybody pretty much had the power of being able to punch somebody. And now we have a woman who can get inside your head and move objects, and a boy that can move faster than anything, and a robot [Ultron] who can self-replicate and is out of his mind. So all of sudden, it's a darker, weirder, tougher world that they're living in."

Aside from the twins, who have already been revealed, also expect a scene wherein a distressed Stark discovers that his Siri-like automaton friend and sidekick, J.A.R.V.I.S., is raided and used by Ultron for parts to create a Frankenwarrior. Paul Bettany voices J.A.R.V.I.S and, he is expected to portray The Vision, Ultron's powerful minion.