During Black History Month, Laura and Urkel hope their fellow students will gain appreciation for other cultures and races with a new class. But all they get is a bunch of threats from a few racist classmates. Laura breaks down in tears and feels sorry for herself, but Estelle's story behind her first library card gives her new inspiration.

Steve and Carl both learn a lesson about when to take credit for their achievements.

The unexpected visit of a mysterious person from Harriette's past leaves Carl speechless.