Watch the Epic 'Avengers' Trailer

Our Avengers excitement continues with a first look at the brand-new trailer! Watch the sparks fly and city blocks leveled as your favorite Marvel superheroes band together to wage an epic battle against an unexpected enemy.

ET on the Top-Secret Set of 'The Avengers'

 The explosive, action-packed superhero movie follows the daring recruitment of the crack team of heroes -- Iron Man (Robert Downey Jr.), Captain America (Chris Evans), The Hulk (Mark Ruffalo), Black Widow (Scarlett Johansson), Thor (Chris Hemsworth) and Hawkeye (Jeremy Renner) -- by Nick Fury (Samuel L. Jackson) of S.H.I.E.L.D. in order to pull the world back from the brink of disaster.

'The Avengers' Assemble in Killer Poster

Marvel's The Avengers explodes into theaters and IMAX on May 4.