After Willis is hospitalized for trying to stop the bullies, Arnold is asked to participate in a sting operation to nab them. When Mr. Drummond refuses to allow this, Arnold takes matters into his own hands, as he feels responsible for what happened to Willis.

Kimberly's hair turns green before a date, due to using a copper bowl affected by acid rain to wash her hair, which gets the Drummond family talking about how to help the environment.