Diane's teasing about his airhead women sends Sam looking for a date of a higher cerebral plane and an old customer insists he must see the former owner to discuss his personal problems.

Diane and Carla decide to bury the hatchet over after work drinks, which lead to a startling confession from Carla about her youngest child.

While Diane keeps notes on bar conversation, a novice comes in for one final fling before entering a monastery and a World War I doughboy shows up for a very small reunion.

The bar patrons are all enthralled by the mysterious gentleman who claims to be a secret agent.

Diane looks to her friends for comfort when her cat dies, but finds everyone too enthralled by a Celtics game to notice.

Carla has a secret that's about to be revealed:she's five months pregnant.

Cheers' regulars fear the place may become a gay hangout after an old friend of Sam's reveals his homosexuality on TV.