When Berg notices he's no longer first in his class he goes out to find who is. He finds out it's a beautiful female co-ed, so he tries to get her get drunk so she won't be able to study for the test the next day.

When Sharon tries to quit her job, she's asked to reconsider...while staying at a company condo in Aruba with two friends. But the trio's career commitments jeopardize the trip.

Pete and Berg unwittingly buy fake tickets for luxury-box seats at the homecoming game when they try to one-up two former nerds who are now successful.

It seems as though Berg has lost his mind when he goes on a murderous rampage.

Pete embarks on a new relationship with an older woman who has a 10-year old son. Sharon is having trouble organizing an office Christmas party and it's only 4 days till Christmas. Berg is having trouble with one of his older patients who doesn't seem to like him.

Pete is put in charge of watching Michael after school which is fine, until he asks Berg to do it for a day. Berg brings Michael to the dog track to help him learn his fractions. Sharon asks Johnny to move in with her.

Ashley comes back and tells Berg she dumped Justin to be with him. Berg now has quite a dilemma, choose Ashley the woman he's been chasing for months or Vanita a woman he's just met. He wants to choose Vanita because he thinks he has a better chance with her. So he dumps Ashley but she won't let go she follows him to the restaurant where he has a date with Vanita and ends up breaking them up. Johnny and Sharon get back together.

When Johnny tells Pete and Berg that he wants to marry Sharon Pete feels his time to tell Sharon how he really feels about her is running out. Johnny proposes but Sharon just runs out.

Sharon can't seem to give Johnny an answer at first but eventually comes out with "Yes, in theory" as it's obvious she's not sure about marrying him but doesn't want to hurt his feelings. Pete flies to Paris to get away from everything and gets hit by a car driven by a beautiful French woman that he later starts dating, even though she can't speak a word of English.

Pete returns from France with a new girlfriend, the woman who ran him over. He thinks he's in love with her until he finds out she a racist. Berg feels old when a new employee calls him sir. He quits his job at the pizza place. Sharon realizes she really wants to marry Johnny.

Pete fears Johnny is trying to kill him. Berg and Ashley start their residency and Berg feels one of the doctors is riding him too hard.

Ashley's ex-husband plays a prank on Berg by making him believe that Ashley used to beat him. Pete tries to get Sharon a new job and in anticipation she quits her old job before finding out she didn't get the job.

Sharon and Johnny compete with another couple to get an opening date for their wedding. Ashley bribes Pete so she can move in.

Berg and Ashley spend the weekend at his parents place to try and spice up their relationship. Pete introduces Sharon and Johnny to the Kama Sutra.

A musical trio narrates the tale of Sharon and Ashley's night of drunken bonding that lands Ash in Sharon's wedding party. Meanwhile, Pete fails to clean up with a woman he meets at a laundromat bar.

When Ashley starts dating Red Sox shortstop Nomar Garciaparra, Berg sets out to show up the guy at Sharon's charity bachelor auction. Meanwhile, Irene invests more than Pete's worth to snatch him off the auction block.

Pete, Berg and Johnny share bad stories about women.

The guys at the firehouse make Pete believe that Marty has a thing for him. Pete, Berg and Sharon decide to hang out at O'Malley's, their old college hangout, just like old times since Johnny is having his bachelor party but Johnny shows up anyway and Berg gets mad at him for ruining their evening and punches Johnny right in the face.

The guys at the firehouse find Pete's make-up bag and the fire chief asks Pete to give his daughter a makeover. In hopes of getting off probation at the hospital Berg lends his apartment to his superior so she can take a nap but she has an affair instead. Sharon has a tea party and Pete and Berg's invites members of the hospital but the wrong ones show up first and they think that she's running a prostitution ring.

Sharon and Johnny get joint checking accounts but Sharon makes all the important choices, Pete is stressed when Marti gets into fireman boot camp before he does and they admit to each other that they like each other, Berg is depressed so he visits his parents only to discover that his mom threw his dad out because he cheated on her.

A client's philandering hubby has Sharon fearing for her own man's fidelity; Berg faces temptation at the hands of a comic-book artist who has fond memories of him from high school.

A jealous Berg tries to get Irene back but ends up screwing it up again, as he won't leave her alone and keeps on having conflicts with Roger, her new mailman-boyfriend. Pete tries to convince Ashley to stay by spending more time with her and making her a picnic in the park, but he gets stood up becuse Ashley doesn't want to get involved with pete as she's moving, and it will end in heartache when she does leave. Johnny wants to spend more time with Sharon, so he helps Sharon serve a subpoena to a man who has a scary dog, and they spend the day together trying to get through the garden to his letter box

When Sharon is late she thinks she may be pregnant so she makes Ashley take a pregnancy test with her, Berg tries to get a urine sample from Irene because he thinks she may be pregnant too when he finds out the glow in the dark condom they used was defective.