The Masters of Evil take Avengers Mansion! In one of the greatest comic book epics of all time, Baron Zemo strikes at the very heart of the Avengers, as he leads a revamped and larger-than-ever Masters of Evil in an attack on the team's home -- and wins! And as if that wasn't enough, Earth's Mightiest Heroes must survive the climax of Secret Wars II and a battle for the ages between Kang and Immortus! The Sub-Mariner's membership leads to public protests, but that won't stop the Avengers and Alpha Flight from lending a hand during Attuma's assault on Atlantis. Meanwhile an old friend turns enemy: What's gotten into Quicksilver? Two teams of Avengers will assemble to find out! COLLECTING: AVENGERS (1963) #264-277, ALPHA FLIGHT (1983) #39, AVENGERS ANNUAL #15, and WEST COAST AVENGERS ANNUAL #1 (AVENGERS EPIC COLLECTION VOL. 16).