Just when it seems the Avengers are gaining the upper hand, Magneto appears, wielding his trusty magnetic powers and a massive...magnet. The X-Men's leader uses his device to hijack the arena's machinery, turning the environment against the Avengers.

In a world where superheroes and supervillains have become the norm, two teams clash in an epic battle of wits, brawn, and...other things.

Meanwhile, on the other side of the globe, Magneto, the Master of Magnetism, has been secretly gathering his own team of mutant misfits, including Quicksilver, Scarlet Witch, and a certain someone with a love for shiny metal.

Meanwhile, Black Widow sneaks behind enemy lines, seducing Quicksilver with her espionage skills and a killer smile. Professor X tries to take control of the Avengers' minds, but Iron Man's suit has a few tricks up its sleeve – or rather, in its AI.