Witches seem to be invading Pennbrook College when Jack’s new spooky girlfriend Millie causes a serious rift between the roommates after Eric tells Jack that he caught her practicing witchcraft; and an unsuspecting Eric goes on a date with a teenaged witch named Sabrina. Guest Hart crosses over in her role from Sabrina, the Teenage Witch. Meanwhile, Cory takes Topanga on her first airplane ride, flown by a not-so-bright pilot.