The Walshes agree to let their maid's extremely intelligent "niece", Carla, use their address to enroll at West Beverly. Brandon falls hard for her, but doesn't understand why everyone seems opposed to their relationship. Carla reveals that she witnessed a drive-by shooting that claimed the life of a four-year-old; she had moved in with Anna while waiting to testify, with protection from the D.A. Carla returns to her family after one of the killers confesses. Jim and Cindy organize a soiree for his new client, a sportswear designer. Dylan, Steve and the girls receive free clothing. David wants MC Hammer to perform at the school dance. Music: 'Let's Go Deeper' by MC Hammer; 'Finger Poppin' Time' by Hank Ballard and the Midnighters, 'Deep Down' by Debbie Gibson, 'I Like You' by Culture Beat.

Marge's sister Selma seeks a husband, so Marge orders Homer to help in finding one. Things go wrong though, when Homer invites Principal Skinner over for dinner and Skinner instead falls for Selma's twin sister Patty.

On Valentine's Day, Sam winds up laid out due to back trouble on the 20th anniversary of his annual tryst with Lauren.