Laura is inspired to make a difference by encouraging support for a black-history class, but her efforts fan the flames of racism at school.

When squeaky-clean Laura enters the race for student-council president, snooty rival Cassie Lynn vows to gather dirt on her. Meanwhile, neighbors elect Harriet Neighborhood Watch leader and Carl is down in the dumps about it.

When accident-prone Steve is blamed for a chemistry lab explosion, Laura represents him at a school trial.