5. A Battle With Ultron
Desperate to stop him from creating an indestructible body, the Avengers will finally decide to head into battle against Ultron, and it's clear that things won't go particularly well for them. There's been a lot of destruction in the trailers, most of which probably goes down when the team finds themselves outnumbered and outgunned by Ultron's army of sentries. It's possible though that that will all be part of the villainous android's plans to keep them distracted, and this is where Quicksilver and the Scarlet Witch will undoubtedly come into play as they look to take down Earth's Mightiest Heroes. The Scarlet Witch should have a key role here as she uses her powers to unleash the Hulk and send him out of control...