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.
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.
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.
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.
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.
Pete, Berg and Johnny share bad stories about women.
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.
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.
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.
Sharon stoops to an all-time low when she eyes her dream dress at a wedding-gown sale. Meanwhile, Ashley tries to fix her own sink after insulting Johnny for his know-how in the "simpler" things in life.
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.
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.
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.
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
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 invites a hobo over for Thanksgiving dinner and he gets the whole gang fighting with made up stories. Ashley moves in with Sharon and Johnny.
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.
Sharon and Johnny compete with another couple to get an opening date for their wedding. Ashley bribes Pete so she can move in.
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.
Sharon and Johnny fight over wedding plans, Berg and Ashley also fight and Pete runs into a crazy ex-girlfriend.
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.
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.
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.
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.
