Bill and Judy attend their twentieth high school reunion, and soon they begin acting like teenagers again. Bill meets his old hot dog eating competitor and challenges him to see who can eat more pancakes at the reunion breakfast, while Judy is shocked to see that the most popular girl at school has become a successful architect and has a ""perfect life."" In order to make Judy happy, Bill makes up a lie about the woman's husband having an affair, and Judy spreads it all around the reunion. Now Bill has to make an effort and correct the lie, but only makes it worse – as the rumor spreads, the guy goes from a cheater to gay man. Meanwhile, Linda scores a date with an ex-boyfriend, but she can't get over his disliking of The Beatles.

After Judy and Bill order Lauren to drop basic math and take a more difficult algebra class, her bad attitude about schoolwork multiplies and the conflict between Lauren and her parents increases exponentially. Judy and Bill then try to solve the problem using the art of negotiation.

When her cat dies, Linda starts treating her latest loser boyfriend more like a feline than a man. Meanwhile, Bill and Judy can't help but make fun of the strange circumstances of the cat's death.

When Brian graduates high school, he plans to move out and Bill and Judy plan to expand their bedroom into his. However, Brian gets the impression they've split and have become swingers.