Buffy (Sarah Michelle Gellar) is looking forward to trading in her stakes for a corsage as she and her friends prepare for their senior prom. Angel (David Boreanaz) is less enthused about the big dance, especially since Joyce (Kristine Sutherland) wants him to end his relationship with Buffy. Meanwhile, a Hell Hound mauls a shopper at the dress shop where Cordelia (Charisma Carpenter) is working. Reviewing the store video camera recording, Buffy clues in on the Hell Hound's possible owner. Despite her friends' insistance, Buffy won't let anyone else miss the prom to help her track down the Hell Hound. This is the first episode where Anya (Emma Caulfield) and Xander (Nicholas Brendon) actually date.
by Matt Collar synopsis