Fonzie agrees to help Al fund the rebuilding of Arnold's, but their business partnership - and the restaurant's future - is threatened when the two can't resolve disagreements on crucial aspects of the project.

A dispute over the Cunninghams' electric bill results in Richie and Fonzie learning sign language after the Fonz falls hard for a pretty, hearing-impaired electric company receptionist who appears to be unaffected by his usually devastating charisma.