The kids face a trilogy of terror when Riley has a sleepover at Maya's with her Gammy Hart and pet ferret. Auggie confronts the monster under his bed, and Farkle tackles his most terrifying fear yet - playing softball.

Classmate teases Farkle for being different and not fitting in with the crowd. Hurt and confused, he stops going to class until Riley, Maya and Lucas rally him to show their classmates how to respect each other's uniqueness and show compassion to those who need it, no matter who they are.