Beverly Hills, 90210

David takes Valerie, Steve and Clare to Las Vegas for the weekend. He frightens them with his reckless driving. They see Ray perform in concert, and he comments on David's frenzied behavior. David gets drunk and suffers heavy gambling losses. He invites two young women on the street to join him at another casino. The women take David to their motel, where they drug him and steal his money, credit cards, jewelry and clothes. Ray calls Donna and advises her to fly in from Los Angeles. She yells at her friends for not babysitting David, then comforts him. Meanwhile, Brandon meets a troubled woman, named Melanie, at the Peach Pit; she was robbed just after arriving in town, and cannot get in touch with her fiance. Brandon provides her with refuge, and helps her pick up the pieces when she learns that her fiance has met someone else. Also, Steve steals a term paper from Brandon and turns it in as an independent study project. Mark agrees to be patient with Kelly, who is not ready for an intimate relationship.