The West Coast meets the Old West! Firebird finds herself in the middle of a fight between the Rangers and the Avengers — but will she become the sixth Whacko, or will the Thing? Menaces mount — including Master Pandemonium, Headlok, Griffin and Graviton — while Tigra and Hellcat team up against Tiger Shark! Meanwhile, Hank Pym battles his demons — but who will be his savior? Then, a time-warping terror leaves the West Coast Avengers trapped in the past! Hawkeye meets old friends Two-Gun Kid and Rawhide Kid, but another Western legend spells big trouble for Mockingbird! The sprawling space-time saga spreads to ancient Egypt as the Whackos travel ever further back in time — but what role will Moon Knight play? And will the team ever find its way home?