Meredith tries to raise money to move into her own apartment by entering a secret teachers' betting pool for the annual student science fair and tipping the odds in favor of her chosen winner, Lily, by sabotaging the other students.

Meredith and Principal Carl's friendship suffers when she argues with the parents of the school's most gifted student and refuses an order to apologize for her behavior. Meanwhile, Ginny is set on edge when Joel scratches her car and tries to charm his way out of taking responsibility for the damage.