Based on the AMAZING new animated series! What do you do when the world's evilest villains attack? Call Earth's Mightiest Heroes to save the day! In our first tale, CAPTAIN AMERICA and THOR face a threat bigger than BOTH of them! And in tale two, following the exploits of everyone's favorite arrow-flinger: HAWKEYE! Brought to you by superstar writer CHRISTOPHER YOST (X-FORCE) and incredible artists SCOTT WEGENER (ATOMIC ROBO) and PATRICK SCHERBERGER (WORLD WAR HULKS)!