Raven's mortified about her mom accepting a job to substitute teach her English class. In a note to Chelsea, Raven writes, "I just don't want her here. She's not funny. She's embarrassing. I hate this." Unfortunately, this personal correspondence winds up in Mrs. Baxter's hands, prompting Raven, Chelsea and Eddie to launch Operation Note Rescue.

Chelsea's disturbed by the fact that her crush has the same name as her dog, so she and Raven decide to give the teen a nickname. To make the moniker they've chosen stick, the girls masquerade as boys in gym class.