On Mother's Day weekend, Clare still grieves over her long-dead mother and Steve cannot figure out how to increase her spirits. Kelly must share a shocking secret with Brandon when she thinks that she may be pregnant. Meanwhile, Valerie makes a pass at David as part of her latest scheme to get him to buy her share of the Peach Pit After Dark as part of her nefarious plan to invest the cash in Kelly's father's business. Donna becomes stressed out from balancing time with David and studying for her final exams, and has another run-in with her cold-hearted business professor, Langley, who openly disapproves of Donna dating David because the professor sees him as a distraction to Donna's future.