When Sheri asks Malena to run with her in a local footrace, Malena only agrees after Sheri promises not to be overly competitive. However, as usual, Sheri's competitive personality emerges, and the friendly race turns into all-out war. Malena cheats in order to teach Sheri a lesson. Meanwhile, Mel refuses to hire a plumber to stop the sink from dripping incessantly, prompting Dean to teach him the rules of the suburbs.