Kelly's decision to confide in her friends about her mother's pregnancy wreaks major havoc in Mel and Jackie's relationship. Brenda looks forward to a romantic Valentine's Day with Dylan, who has an unusual evening planned for them. Meanwhile, Andrea displays an amazing knack for picking winning horses during a trip to the race track with Nat.

When a mall development project places the future of The Peach Pit in jeopardy, Brandon stages a protest in the hopes of saving his favorite hang-out from demolition. Meanwhile, the teens attend a college party, but Brandon forgets to dress according to theme.