When his garage gets a new owner, Fonzie decides to quit. He is unable to find another job as a head mechanic, but, with Howard as his inspiration, vows to find his true calling.

The guys discover that Fonzie has been going to night school so that he can graduate with them. Marion gave them this information, and she becomes worried that Fonzie will be angry with her for telling.

After passing make-up health exams and getting permission for Fonzie to participate, the guys arrange for aspects of the graduation ceremony to be sped up in order to accomodate the inclusion of Fonzie's speech.