Marvel Studios has released the 10th TV spot for Marvel's The Avengers, which finally arrives in theaters May 4. Iron Man (Robert Downey Jr.), Captain America (Chris Evans), The Hulk (Mark Ruffalo), Thor (Chris Hemsworth), Black Widow (Scarlett Johansson), and Hawkeye (Jeremy Renner) team up to stop the villainous Loki (Tom Hiddleston) and his army in director Joss Whedon's ensemble. Check out the latest video featuring all of these Marvel superheroes in action.