The Earth has been STOLEN! The sky burns while mysterious cosmic objects crash down from above, wreaking havoc across the world! The Avengers are the last line of defense between Earth and the mysterious forces threatening to tear it apart. It's time to ASSEMBLE! The teams you know and love from AVENGERS, UNCANNY AVENGERS, U.S.AVENGERS and OCCUPY AVENGERS come together to face a threat beyond any they've faced before in a weekly epic adventure that will define the future of Earth's Mightiest Heroes!