Berg and Irene race to bury any proof of their fling, while Johnny gives Sharon a post-wedding shock and Pete realizes that, for a firefighter, Marti is a cold, cold girlfriend.

Berg's fling with Irene and Pete's secret thing with Susan all come out during a party to honor one of their lusty ladies. Meanwhile, Johnny hides his money matters from Sharon.

Irene throws Sharon and Johnny a wedding on the roof after Sharon cancels some of the plans, Pete and Marti go off to fireman boot camp and Berg and Irene hook-up.

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.

Pete and Ashley get mugged while waiting for the subway, Sharon and Johnny have trouble writing their wedding vows, Berg is afraid he might screw up at the hospital again when he's called in to replace a sick doctor and Irene's dad visits.

Pete gets an internship thanks to Ashley but gets fired when he's caught having sex with the boss' daughter, Ashley's sister.

Sharon gets jealous when Johnny helps his friend Shawn with her Lamaze class, Pete is mad at Berg when he goes out with Marti because Pete wanted to go out with her and Germ suspects Ashley of stealing hospital supplies.

Pete enlists the help of a TV love guru to help Berg and Ashley when Berg calls Ashley to tell her that he thinks they shouldn't see each other anymore. She doesn't take very well and breaks down and cries. And for Sharon and Johnny because Sharon is jealous of Johnny's friend Sean when she finds that Sean is a woman.

Sharon goes for a new job to impress her dad, but during a background check, her alma mater reports she never graduated due to tickets she thought the guys had paid.

Robert Goulet stops by Ashley's boffo New Year's Eve party, where the Broadway king holds court with Pete's unstable date. Meanwhile, in the basement, Johnny puts Sharon off with his Goulet fixation as they prepare to greet the new millennium.

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.

Sharon and Johnny want to start a new Thanksgiving tradition and be alone. But plans change when Pete's grandpa comes down unannounced and Berg invites Ashley and her boyfriend Justin. Berg and Pete both hate Justin. Berg and Justin both compete for Ashley's love but she apparently dumps both of them. While trying to break Ashley and Justin up Berg almost ends up breaking up Sharon and Johnny.

When Berg finds out that Ashley went to visit her boyfriend at Oxford he flies all the way to England to be with her. It turns out it is Oxford, Mississippi. Ashley's boyfriend says he'll move to Boston so they can stay together. Pete and Johnny get jobs as limo drivers. Berg and Ashley finally kiss.

Sharon tries to reunite Berg and Ashley with the help of video monitors wired to watch the tenants in the building. But it looks like they may not be able to use the cool new tool to save Pete from Irene and her crazy scheme to enshrine him.

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.

Pete and Berg reflect on their college days when Bill asks them how come neither of them was ever romantically involved with Sharon.

A mad scientist switches Pete's brain with Ashley's brain and Berg's brain with Sharon's brain and the only who can help them is Johnny.

Everyone at the hospital is making fun of Berg for his actions at the bachelor auction so he tries to regain their respect by working nonstop until he almost kills a patient accidentally. He's suspended from the hospital for that. Sharon volunteers to read to children at the hospital and Pete becomes a volunteer fireman.

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.

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.

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.

Berg lands in a very tight spot when Irene takes their little affair a tad too far; Sharon refuses to get dirty with Johnny until he cleans up the new brownstone; and Ash begins to fall apart after her breakup with Nomar.

Berg and Sharon set Pete up with a girl they find listed in the personal ads, but she soon makes it clear she won't let anyone come between them, even to come in Berg's bedroom at night with a baseball bat.

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.

Pete has to choose an elective course. He chose metallurgy but when Berg brought his course choice card in he changed it for a course in sports broadcasting. At first Pete's mad at Berg but soon learns to enjoy it. Also Sharon tries to prove that her boyfriend isn't dumb.

Sharon and Johnny fight over wedding plans, Berg and Ashley also fight and Pete runs into a crazy ex-girlfriend.

Pete wants to break up with his girlfriend Melissa because he doesn't think, she's "the one"; however, just as he's deciding against it, Berg tells Melissa.

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

Berg is suspicious that Ashley might be posing nude for a professor. Johnny's four sisters and three of them are pregnant. Berg delivers a baby.

Berg decides to keep hiding his secret fling with Irene after she blows him off for a last-minute dinner date with Pete. And at the next table over, Johnny blows his lid because Sharon has been spending too much time with Ashley.

While Berg steps into the ring as a cut man for a boxer, Ashley, Pete and Sharon fight out their differences.

When Sharon uses an embarrassing underwear ad that Berg had posed for four years prior, for a contest he goes to great lengths to get one of her. Pete realizing he has no parental rights with Michael because he's just the guy dating the mother asks Kaitlyn to marry him. She refuses on the basis that they've only known each other a month and tells him that they should take a break from each other for a while.

Johnny and Sharon are overjoyed when their fire trap of a house goes up in flames, until Pete gets a hot tip that the place was torched. Meanwhile, Berg has a hard time watching his newly single mom have some truly single fun with Ashley.

Pete, who has a big presentation to make in front of the museum board, might have accidentally swallowed an overdose of an allergesic Berg is testing out.

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.

Boston turns against Ashley after Pete leaks her link to Nomar's rumored exit from the Red Sox; Berg begs Johnny to keep his secret fling with Irene under wraps when Sharon comes sniffing for the scoop.

Ashley moves in with Johnny and Sharon and Johnny keeps walking in on her in various stages of undress. Pete learns that his grandfather only has six months to live.

Ashley's leaky plumbing has Berg in search of sleep, Pete in hot water with Irene, and Johnny in talks with Sharon to maybe have a baby.

Pete must face his feelings for Berg's mom after her fling with his fire captain goes up in flames. Meanwhile, a hot stock tip from Ashley has Johnny burning through his savings to strike it rich.

Pete and Berg fight back against their landlord when he goes over the edge with the rules for living in the building.

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.

Pete and Berg, who feel neglected by Sharon since she has a new boyfriend, plan to sabotage her relationship.

Pete quits his job at the pizza place and tries his hand at psychiatry. The job doesn't work out but he lands a job as a career counselor after he gets his career counselor a better job. It seems he can get a job but for other people. Ashley and Sharon start hanging out together and reveal secrets about Berg.

In a dialogue-free show, a pregnant woman stalks Ash, a mystery lady stuns Pete and Johnny spoils Berg's shower time. Meanwhile (and also silently), Sharon seeks the stray dog who swallowed her wedding ring.

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.

As Johnny tries to talk Sharon into moving to the basement studio, Ashley and Berg duke it out over her hunky new roomie. Meanwhile, Pete's stalker keeps him guessing when she snatches a package meant for him

Irene's deal with the Devil gets Pete a spare head, while Berg falls apart (literally) and Sharon one-ups Johnny in the "man" department. But when they try to reverse the curse, things go from bad to worse. And then to "The Twilight Zone."

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.