Laverne and Shirley get reacquainted with Ms. Babish's mentally challenged daughter, Amy, who's visiting from her special school. Lenny meets Amy and immediately comes to like her, despite people's protests about what's best for Amy.

Laverne busts a tooth but wont see a dentist. Shirley suggests her student dentist cousin Mikey. Laverne's hates the idea. Mikey has flunked before. Shirley gets her okay but once in the chair will Laverne truly feel safe in Mikey's hands?