Becker meets an older woman on the subway who's on her way to Ground Zero; Chris entertains the doctor's out-of-town friends with whom he is supposed to have dinner; Linda accidentally deletes some important insurance files.

In the series finale, Becker realizes he's happy, but Chris fears that John is going to break up with her after he invites her to dinner at a nice restaurant; Jake used his inheritance from his grandmother to go off to Northwestern University; and Linda finds a new Italian boyfriend on the subway.

Confined to his apartment during the recuperation period, Becker is subjected to the intruding lifestyles of those who live in his building, which has him seeing red. His mood brightens -- temporarily -- when his doctor from the hospital, Elizabeth Carson, makes a house call. Meanwhile, "good help is hard to find" takes on a new meaning when Margaret and Linda try to find a doctor to fill in for Becker.

A rumor starts that John is dying when he suddenly begins eating healthy food and tries to control his temper.

After John agrees to take on a vacationing doctor's patients and one of them dies, he inadvertently leaves a phone message, then desperately tries to retrieve it. Meanwhile, Linda tries to comfort her friend Lynda, who won't leave the office; and Reggie and Jake trade barbs during a slow time in the diner.

John gets into an argument with a priest over whose hands a patient is really in -- God's or the doctor's; Reggie, Jake and Bob take a gamble on the stock market.

Liz is offered a job in Chicago, which prompts John to tell her how he feels about her. He quickly regrets doing it, fearing he'll lose his freedom.

Becker's super dies and Bob takes his job, and the diner is packed, but no one is a paying customer.

Challenged to do so by his friends, Becker changes his routine with disastrous results. When he eats at a new Chinese restaurant, Linda gets a stalker, Margaret gets food poisoning, Bob gets punched in the nose, and Reggie and Jake lose $80 to a scam artist.

When Becker has a high school student shadow him for a day, it turns out to be the most boring day ever at the office. Meanwhile, Reggie, Jake and Bob find that they have told each other all of their stories and have nothing to say to each other anymore. They decide to start sharing more personal stories, and Reggie and Jake learn a little more about Bob than they wanted to know.

Becker's office is vandalized, and many, many people appear to have a plausible motive. It turns out that it was just Linda throwing a party, but she goes on a date with the clueless cop assigned to the case to keep him quiet. Meanwhile, Bob has been hanging out in Becker's apartment during the day and impersonating the doctor.

Becker decides to quit smoking -- unfortunately, on a day when nothing goes right; Margaret is worried that her marriage is falling apart when her husband plans a trip to Atlantic City without her; when Linda keeps screwing up an X-ray, she convinces an old woman that she's crazy to get the woman to keep coming in for new X-rays; Bob, instead of fixing Becker's broken radiator, sleeps in Becker's bed and breaks his clock radio; and Reggie makes Becker do a memory test for a school project.

Margaret has an erotic dream about Becker; Jake accidentally signs for a keg of beer, so Reggie can't return it. Since Reggie also doesn't have a liquor license and therefore can't sell it, she, Jake, and Bob decide to drink it all.

Dr. Becker sails off on a gay cruise because of Linda; Jake's girlfriend is letting her looks go due to his blindness.

Chris gets frustrated when John repeatedly refuses to hold up his end of a conversation; Linda claims that she has met “the one,” but she soon gets a big surprise; and Hector tries to persuade Jake to invest in his latest get-rich-quick scheme.

What was supposed to be a quiet Thanksgiving dinner for Becker and Chris turns into a stressful feast when Chris' long-lost sister shows up. The gang learns she served time for cutting off her husband's finger in a fit of rage, and nervously watch her for signs of a relapse.

When odd characters begin to overrun Becker's office and Chris' diner, Margaret discovers that a local halfway-house has been shut down. Becker decides to round up his new eccentric friends and takes the law into his own hands with an organized march for justice. Meanwhile, Jake inherits $25,000 from his late grandma's estate and must decide what to do with the money.

Chris gets upset when John gets a free trip to Las Vegas to speak at a medical convention, but doesn't invite her to go along because he refuses to trade in his first-class airline ticket for two coach seats. Then Becker is tempted by a lovely doctor who whispers sweet nothings in his ear during the six-hour flight. Meanwhile, an uppity plastic surgeon takes over Becker's practice during his absence.

There's a blizzard in New York, so Chris plans a trip to Bermuda with Becker; a psychic tells Linda she's going to meet the man of her dreams; Margaret looks forward to a weekend alone.

Becker is grumpier than usual after he decides to quit smoking, but he gets a lift from Reggie's friend (Marjorie Monaghan), an ex-smoker who tells him the only substitute that worked for her was sex.

When a self-serving reporter witnesses a heated argument between Becker and a man at the diner, he determines that Becker's comments are "politically incorrect" and uses his column to create a local controversy. Becker tries to ignore the reporter's comments, but when the hack then belittles Becker on a local radio show, the short-fused doctor heads to the station for a one-on-one confrontation.

Parents are enraged when they learn that John's talk on nutrition to a class of 8-year-olds turns into a discussion about sex; two cops use the diner for a stakeout.

The fourth season concludes with a romantic cliffhanger as Reggie and a new neighbor (guest star Nancy Travis) each vie for John's affection. Also, Linda takes Margaret out for a night on the town, which Margaret lives to regret.

When Dr. John Becker finds out that one of his patients is dating Reggie, he decides to give the guy some free advice on how to "court her properly." Meantime, Linda becomes a volunteer for Big Sisters and gets stuck being a mentor to a greedy brat who takes advantage of her at every turn.

Before leaving for a medical conference in Chicago, at which he is scheduled to speak, Becker discovers that he has an extra airline ticket, which Reggie ends up using. Once aboard the plane, Reggie is immediately annoyed by the flight attendant and fellow passengers while Becker is uncharacteristically taking it all in stride. When Reggie discovers that Becker is high on Valium, she's alone in her misery until bad weather causes a delay and finds them stuck for hours on a tarmac in Buffalo. As the Valium wears off, Becker's temper and tongue-lashings return and the situation becomes a pressure-cooker about to explode.