With Quicksilver missing, the Scarlet Witch has locked herself in the Avengers monitoring room until she finds her lost brother. The Black Panther returns to the mansion after an adventure with Daredevil right when the Scarlet Witch bursts into the room with information about a report of scientists in Chile that have been kidnapped by strange attackers. And so Iron Man, Hawkeye, Scarlet Witch, Black Panther, the Vision, and Thor (joined by Sif who is visiting Earth with a number of other Asgardians) travel to Chile to check out what is going on there.

Arriving in Chile, they find a secret tunnel that brings them to the Savage Land, and they are attacked by the Mutates, but easily fight them off. Traveling to the village Magneto built in the Savage Land, they find it in ruins and also find the costume worn by the X-Man known as the Angel.

Once again the Avengers gain the upper hand until Vertigo unleashes the Mutate known as Lorelei who uses her mutant singing power to lull the Avengers into a trance like state. This however does not effect the Vision who then easily defeats Vertigo and Lorelei. After the battle the Scarlet Witch approaches the Vision about his cold behavior which the Vision passes off because he is "just an android." After saving the scientists and returning home, the Avengers continue their search for Quicksilver, however Vision stays behind to brood, contemplating taking up the Grim Reaper's offer to become human.

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