A suspected flasher and Flo's third ex-husband (Rod McCary) stir things up at Mel's Diner.

Alice's moonlighting job as a nightclub singer is taking its toll on her waitress job.

Alice suspects that a diner regular is really an incognito mobster.

Endearments replace the insults in Flo and Mel's relationship after they attend an out-of-town game together.

Flo's vanity keeps her from getting the eyeglasses she obviously needs.

Flo is courted by a rich Arab (Richard Libertini) who, unknown to her, already has three wives.