Audience members are asked to vote online to determine the season finale -- whether or not Sharon, Ashley or Irene is pregnant.
Pete tries to convince Ashley to not move to California; Irene dates a postman; Johnny helps Sharon serve a subpoena.
Katie can't keep her hands off Berg (Ryan Reynolds) after he breaks things off with Irene (Jillian Bach).
Berg makes another effort to win back Irene; Ashley asks Pete to be her date at a mixer with hospital VIPs.
Berg starts a fight with Irene to justify a secret date with Katie; Sharon suspects Johnny's seeing someone.
Berg tells Irene he loves her, but she does not reciprocate; Pete and Ashley pair up at a movie theater.
Sharon has second thoughts after giving Johnny a gift certificate for his birthday; Berg becomes the workplace cad.
Berg (Ryan Reynolds) rushes Pete (Richard Ruccolo) to the hospital after he cuts off his finger, but the digit is lost en route.
Pete's affair with Berg's mom threatens their friendship; Johnny presses Sharon to take a high-paying corporate job.
Berg finds out about his mother's fling with Pete; Irene wants Berg to admit to everyone that they are a couple.
Pete has an affair with Berg's mom; Johnny quietly invests everything on a stock tip he received from a delirious patient.
Johnny and Sharon's house burns down; Berg is shocked to find that his newly divorced mother has become a party animal.
Pete and Berg try to prove their heroism after a TV crew films them sitting idly while Sharon saves an old man.
Pete sneaks into Ashley's place and Berg crashes at Sharon and Johnny's after a broken water valve boots them out of their apartment.
Berg becomes a third wheel on Peter's date with Irene; Johnny and Ashley try to control Sharon's life.
Berg, Pete and Johnny go out for the night, and Sharon panics when she realizes Johnny didn't wear his wedding ring.
Pete falls for a beauty on a subway; a stray dog eats Sharon's wedding ring; a throng of pregnant women stalks Ashley; Berg bathes in public.
Sharon hires a contractor to remodel the house without telling Johnny; Berg discovers he has feelings for Irene.
Irene (Jillian Bach) puts a curse on Pete, Berg and Sharon (Richard Ruccolo, Ryan Reynolds, Traylor Howard) when she's barred from entering their Halloween party.
Ashley becomes the most hated woman in Boston; Pete jeopardizes his relationship with Marti.
Berg feels guilty about treating Irene as a "sex buddy"; Sharon and Johnny try to christen their new home.
Pete plans a rendezvous with Marti, but encounters a bear; Berg and Irene try to keep their romance secret.
Irene throws a wild wedding for Johnny and Sharon after an argument pushes Sharon to cancel more elegant plans.
Pete is jealous when Marti gets into firefighter boot-camp; Berg visits his parents for moral support; Johnny and Sharon apply for a joint checking-account.
Pete pretends that he does not care when Berg begins dating Marti; Johnny volunteers to be a Lamaze coach for his ex-buddy.
Berg tries to work hard to get himself off academic probation; Sharon hosts a board of directors mixer.
Sharon angers Berg by inviting Johnny to the private bachelorette send-off; Pete seeks Ashley's advice.
The guys exchange war stories about women; Pete's uneasy when the firemen try to haze a female firefighter.
Berg gets an opportunity to work solo with patients; a mugger accosts Pete and Ashley; Sharon pressures Johnny to write wedding vows; Irene prepares for a visit from her father.
Pete joins a volunteer fire department; Berg treats doctors and patients after an outbreak of food poisoning at the hospital.
Berg's participation in a charity auction turns into a personal competition when Ashley's new boyfriend enters.
Sharon tricks a woman out of buying the wedding dress she wants, then questions her true feelings about getting married.
Sharon and Johnny use surveillance equipment to spy on Berg and Ashley; Pete's personal items are stolen.
Pete meets his dream girl at a laundromat-bar; Sharon asks Ashley to be her bridesmaid, which she quickly regrets.
A misunderstanding on New Year's Eve causes another rift between Ashley and Berg (Suzanne Cryer, Ryan Reynolds). Robert Goulet guest stars.
Johnny and Sharon (Nathan Fillion, Traylor Howard) are forced to move when money becomes an issue; Ashley (Suzanne Cryer) catches Berg (Ryan Reynolds) flirting.
Johnny accidentally sees Ashley naked after she moves in with him and Sharon; Pete's grandfather visits.
Ashley invites a homeless man to join the group's Thanksgiving dinner, while Pete invites his crazy girlfriend.
Berg (Ryan Reynolds) introduces Ashley (Suzanne Cryer) to his judgmental mother (guest star Cheryl Ladd); Pete (Richard Ruccolo) gives Johnny (Nathan Fillion) unsolicited sexual advice. Steve Landesberg also guest stars.
Pete confronts Berg about Ashley's moving in; Johnny and Sharon have a premarital counseling session.
Johnny (Nathan Fillion) comes to the rescue when a mad scientist switches the brains of Berg, Sharon, Pete and Ashley (Ryan Reynolds, Traylor Howard, Richard Ruccolo, Suzanne Cryer).
Pete's (Richard Ruccolo) generosity with his big paycheck alienates his friends; a former girlfriend surprises Pete.
Ashley's ex-husband warns Berg of her sadistic tendencies; Pete must hire someone for an executive position within 24 hours or lose his job.
Berg tries to charm his new professor into giving him a good grade; Pete suspects Johnny is trying to kill him.
Pete (Richard Ruccolo) returns from Paris with a girlfriend, while Sharon (Traylor Howard) wears her engagement ring around her neck.
Johnny insists that Sharon answer his marriage proposal; Pete leaves the country to sort out his feelings.
Pete realizes he's in love with Sharon just as Johnny prepares to propose; Ashley tells Berg a few secrets.
Music group Barenaked Ladies sing advice to Pete (Richard Ruccolo); Sharon and Ashley (Traylor Howard, Suzanne Cryer) discuss Berg's (Ryan Reynolds) insecurities.
Berg (Ryan Reynolds) humiliates a professor Ashley (Suzanne Cryer) wants to impress; Sharon's (Traylor Howard) maternal instinct takes over.
Berg (Ryan Reynolds) enjoys his new job as ringside fight doctor until he has to tell a fighter his career is over.
Ashley pursues Berg (Ryan Reynolds), who is now in love with someone else; Sharon (Traylor Howard) will not take Johnny back.
Pete and Sharon (Richard Ruccolo, Traylor Howard) think they see Berg (Ryan Reynolds) engulfed by a tidal wave on the news, after he goes to meet the weather forecaster on location.
Berg is ignored when Sharon and Johnny double-date with him and another girl -- and both women want to be with Johnny.
The boys (Ryan Reynolds, Richard Ruccolo) confess a college secret when Sharon (Traylor Howard) finds out she never graduated because they never paid her library fee.
Pete must choose between his friends and a girl he just met; Berg plots revenge against Sharon for using his photo.
Berg (Ryan Reynolds) intervenes when Pete (Richard Ruccolo) fails to help his girlfriend's son in math; Johnny moves in with Sharon (Traylor Howard).
Pete falls for a single mother with a young son; Berg is harassed by a patient; Sharon plays the company Santa.
Pete consults a television love guru for Berg; Sharon is jealous of her boyfriend's female fishing buddy.
Pete's grandpa shows up for Thanksgiving, ruining Sharon's plans for a quiet dinner; Berg competes with Ashley's other boyfriend for her attention.
Berg (Ryan Reynolds) follows Ashley (Suzanne Cryer) to Oxford; Pete (Richard Ruccolo) gets a job chauffeuring a rich elderly lady. Nomar Garciaparra and Jane Carr guest star.
Pete fears a bride is the one who got away; Berg takes Ashley to a wedding but flirts with another woman.
Pete's involvement with his employer's daughter jeopardizes his job and Berg's relationship with Ashley.
Guests mysteriously disappear from Sharon and Pete's (Traylor Howard, Richard Ruccolo) Halloween party.
Berg signs Pete up for the wrong class; Sharon tries to find a redeeming quality in a hard-bodied hunk.
Pete and Berg tamper with the law, and Sharon exaggerates her boyfriend's social standing to impress former classmates.
Berg's former girlfriend starts dating Peter; Sharon secretly investigates personal tattoos in the women's gym.
Sharon considers quitting her job while vacationing in Aruba; a job interview holds Peter and Berg back from their vacation.
A female med student shakes Berg's confidence but also arouses his interest; Pete's luck with women seems to be improving.
Berg and Pete fight back when their landlord places stringent restrictions on their living conditions.
Pete (Richard Ruccolo) is put in an awkward position when both Berg (Ryan Reynolds) and Berg's father (Howard Hesseman) confide in him.
Berg and Pete (Ryan Reynolds, Richard Ruccolo) wonder why neither of them has a romantic relationship with Sharon (Traylor Howard).
Berg (Ryan Reynolds) investigates Pete's (Richard Ruccolo) interest in delivering pizza to the home of an artist (Carmen Electra) who paints with her nude body.
Berg and Sharon (Ryan Reynolds, Traylor Howard) set Pete (Richard Ruccolo) up with a woman from a personal advertisement, who makes it clear she will let nothing come between her and her man.
Berg (Ryan Reynolds) throws a fake 30th birthday party for Pete (Richard Ruccolo) so that he can get closer to Bethany (Amy Van Horne).
Berg unwittingly sets Pete up with a terminally ill patient (Rena Sofer).
Berg and Pete (Ryan Reynolds, Richard Ruccolo) decide to start a coed softball team so they can meet women. With Traylor Howard.
Berg and Sharon, who have different views on what a perfect tenant should be, interview potential candidates.
Berg surprises Pete with the Celtics' coveted championship banner, which causes an uproar among the team's fans.
Berg and Pete decide to sabotage Sharon's new relationship when she starts spending all her time with her new boyfriend.
Berg and Sharon attempt to find Pete, who is on his way to make an important presentation, after he ingests an allergen.
Berg spills the beans to Melissa when Pete considers breaking up with her.