In the weeks following the Avengers’ showdown with the Masters of Evil, She-Hulk mounts a legal defense for both Pepper Potts and Simon Williams. With testimony from Whirlwind, Reed Richards, and Leonard Samson, both are acquitted of all charges.
Reed Richards briefs Hank McCoy, Hank Pym, and Tony Stark on the various alien races and laces of interest the Fantastic Four have discovered.
Halloween night arrives, and Thor, Spider-woman, and She-Hulk find themselves in the mansion, assigned the dual roles of monitor duty and handing out candy to trick-or-treaters. Meanwhile, Doctor Strange is attacked in the Sanctum Sanctorum by his archnemesis Baron Mordo, who tells Strange that as Strange gathered allies, so Mordo has, too.
The Avengers in the mansion find themselves under attack by The Night Shift – Jack O’Lantern, Wendigo, Satana, the Brothers Grimm, and Scarecrow. Spider-Woman takes down Jack O’ Lantern in a one-on-one fight, while Thor, dressed as Volstagg for Halloween, engages both Brothers Grimm and the Scarecrow. She-Hulk attempts to get to satana, who is casting a ritual of some sort from a magical scroll, but is blocked by the Wendigo
Just as the Avengers find themselves successful in defeating the Night Shift, Satana’s spell slays her five teammates, using their souls in some sort of summoning. Betrayed, Mordo flees, but doctor Strange can detect that something unspeakably evil has been set loose in New York City.