The Night Shift is on the prowl and stalking Earth's Mightiest Heroes! On a Hollywood movie set; Hangman, Gypsy Moth, and the Brothers Grimm attack Wonder Man and his friends! And a while later in Malibu, the Night Shift ambushes Hawkeye, Spider-Woman, and the U.S. Agent! The Avengers win the first fight, but not the second! Who put the Night Shift back to work?