Flash forward a number of years. Mabel is a grown film maker, showing a documentary of her parents lives over the last 20 years. Married or not, separated or not, Mabel blames her parents for her own current life.

A grown-up Mabel reflects on her parents' life, beginning with their 1999 anniversary---when they learn that they're not technically married.

Paul and Jamie learn they may be distant cousins; Sylvia has a sudden change of heart about her daughter-in-law.

Paul and Jamie decide to tell their families that they love them, a process that's made more difficult when Paul hits Theresa with a car.

Jamie and Paul plot to steal Burt's old clunker; Ira is reunited with his ex-wife, Marianne.

Paul and Jamie discover the pleasures of sleeping separately; Ira turns Marvin into a pro wrestler.

Paul fixates on his dream involving a math formula that could potentially solve the Y2K computer bug.

Their therapist declares the Buchmans "cured," but Jamie doesn't buy it; Murray is entered in a dog show to boost his confidence after a kitten beats him up.

Paul and Jamie are forced to play parents when Uncle Phil causes trouble after returning to school after 63 years; Lisa gets breast implants.

The Buchmans need Mark McGwire to ensure their investment in a computer that predicts the future; Ira finds a big problem with an otherwise perfect woman.

Paul and Jamie spend an unsettling trial night in a large house in the suburbs.

The Buchmans' honeymoon getaway is upset by the arrival of another couple Jamie fixed up. Meanwhile, housesitter Lisa gets in a major tangle.

Ira recruits friends and family to be ringers in his giveaway contest to save his financially strapped store.

The Buchmans covet another child's toy for Mabel; Paul tends the building super's roof garden; Jamie finds Paul's latest film "dull."

Good deeds and good intentions nonetheless spark raucous rows in the homes of the Buchmans and their neighbors.

The Buchmans' Thanksgiving guest list grows to include Mabel's pediatrician, neighbors Hal and Maggie, Jamie's boss, and waitress Ursula, who are all forced into a cutthroat charades competition between Jamie and Paul.

An agent interested in Paul flies the Buchmans to L.A., where luxurious, baby-free living makes Jamie reluctant to return.

Sheila has the Buchmans stop talking to improve their communication; percussion group Stomp rehearses overhead.

Lisa adopts a cat, whose temperament suggests an ill-bred breed; Jamie finds herself energized by afternoon lovemaking, but Paul is pooped.

Jamie's deceased ex wills her all his possessions and sends a videotaped declaration of eternal love.

Paul has a tonsillectomy; Lisa mentors a preteen; Mabel says her first word.

Out of curiosity, Paul takes Viagra, but Jamie misses their scheduled tryst when she's locked out of her health club wearing only a towel.