An alliance of evil threatens the Avengers! Doctor Doom, the Red Skull, Kingpin, Magneto and more have banded together to pit Earth's Mightiest Heroes against totally unfamiliar foes! The Avengers take on Freedom Force, the Mole Man, the Wrecker, the Juggernaut, Controller, Absorbing Man and more - and suffer a devastating loss! Plus: Cloak and Dagger lend a hand, the New Warriors make their debut - and Magneto pursues a secret agenda all his own! But who is secretly pulling the vengeful cabal's strings? Can the Avengers take down the true mastermind before his hidden scheme succeeds? Collecting AVENGERS SPOTLIGHT #26-28, AVENGERS (1963) #311-313, QUASAR #5-7, IRON MAN (1968) #251-252, AVENGERS WEST COAST #53-55, MUTANT MISADVENTURES OF CLOAK AND DAGGER #9 and material from CAPTAIN AMERICA (1968) #365-367, THOR (1966) #411-413, AVENGERS ANNUAL #19 and AVENGERS SPOTLIGHT #29.