Insecure Robbie hides his budding rebound-affair with Lucy. Wilson is deeply hurt when he finds fickle 'bride' Mary kissing fire-department coursemate Ben Kinkirk. Simon doesn't enjoy bully-mate Rick's girl abusing him as excuse to dump him. Annie's flippant advice nearly wrecks pupil Christy Parks' parents' marriage, yet she resists help even from Eric.

Robbie and Lucy gather the courage to tell everybody about their affair, only to find they all knew and don't really care. Without the thrill of sneaking, their first date fizzles. Ben Kinkirk and Mary both pass the firefighters course, but their meeting on whether to celebrate with classmates messes up Mary's reconciliation with fiancé Wilson., and Billy's questions make Wilson decide against her plan to elope. Matt discovers that Hank and Julie are planning a divorce, and Eric and Annie try to find out why and see if they can help fix it.

Robbie volunteers his car to give Simon a driving lesson as Eric again fails to turn up as promised. Alas, they bump into Matt's car. Wilson has moved and left instructions not to tell Mary his new location. Firefighter Ben Kinkirk volunteers to pick up a rescue dog so he can visit Mary, who instantly calls him her true love again, but ends up found out. Meanwhile Lucy, who refuses to take off Jeremy's ring, is openly jealous of such a hunky suitor, Ruthie pretends not to care. Robbie's brother Ronald drops by and is furious to hear that his muse Lucy dated Robbie. Annie resigns her teaching post without consulting anyone.

Matt ignores at his peril Robbie and Simon's warning not to believe a girl's claim she needs no gift, especially concerning the diamond engagement ring. Eric's solution within budget, industrial imitation, is 'welcomed' even more bitter, until an heirloom is passed on. Lucy flew along to Buffalo with Mary to 'pick up her stuff', but discovers aboard she wants another shot at Ben. After provoking airport security, Lucy gets an instant crush on gallant, hot cop Kevin Kinkirk. She arranges a double-date with his brother, who turns out to be none other then Ben, who is however most suspicious of record-fickle Mary until Kevin gives the decisive push.

The Camdens are surprised by the arrival of Mary with her new guy Ben and his cop brother Kevin, and with her new flight-attendant job that enabled their cheap flights. While Lucy gets close to Kevin, Eric still obsesses over Matt's secret and Robbie and Ruthie still help keep it. Eric neglects his counseling appointment with the elderly Tallridges whose adult son Jerry has 'suddenly' moved out, yet that's just what will inspire him.

Preparations for Matt and Sarah's wedding are being made and things aren't going the way Eric or Annie planned. Matt decides he will convert to Judaism after a discussion with Sarah's dad who convinces Matt that he can convert on the wedding day much to Eric's dismay. Annie panics when Sarah's mother tells her to expect 100 kosher guests to her backyard pot luck dinner. Ruthie and Simon begin to resent Robbie being in the house. Ruthie wants her bedroom back forcing Robbie out now that Matt will be moving out and Simon gets upset that Matt chooses Robbie to be his best man and Sam and David call for Robbie instead of him. Lucy gets upset that Kevin won't come to Glen Oak for Matt's wedding and Ben decides to propose to Mary after Mary starts giving him the cold shoulder. Eric and Sarah's dad the Rabbi go head to head and it seems Matt and Sarah's wedding won't go ahead after all.

The Camden family gather together for Matt and Sarah's wedding. Eric and the Rabbi make amends while Ben and Kevin decide to go to Glen Oak to pursue Mary and Lucy. Ruthie and Simon sort out their issues with Robbie.

The season starts with the Camden house in a state of change. Kevin moves in the garage apartment and plans to propose to Lucy. Robbie meets Kevin's police partner and is ready for romance. Ruthie starts dating, and Mary has an older boyfriend.

Simon starts a dating service. Mary and Jack are planning to move to Florida. Annie and Eric have their hands full with family events.

Ken Smith threatens the church because he disapproves of Mary's relationship with his son; Ben reads Lucy's diary; Simon's former girlfriend is rumored to be pregnant.

Eric has double bypass surgery and most of the family waits for results at the hospital. Ruthie stays home to watch the twins. Lucy tells her parents she is ready to accept a wedding proposal, but Kevin is no longer ready to propose.

Eric is recovering from surgery at home and starting to get restless. Annie tells everyone in the family to talk to Eric about their problems so he will fell useful. Lucy's friend Paul asks her to convince his parents to let him travel.

Eric becomes the new DJ for a college radio station and he is immediately is involved in a suicide call by a student. Lucy continues to be upset about the partnership of Kevin with Roxanne.

Annie attends one of Eric's counseling sessions; Lucy and Kevin's different views on the judicial system become apparent when Lucy tries to avoid jury duty.

Chandler learns that his father is dying of lung cancer and rejects Eric's efforts to help them; Lucy accepts a date with Chandler's chain-smoking tattooed brother Sid (guest-star Jason London) in order to make Kevin jealous enough to propose to her; Annie is shocked to find a pack of cigarettes in Simon's bedroom; Peter begs Ruthie to lie to his mother about his smoking.

Lucy dreams that Kevin takes her out for Valentine's Day, and Roxanne comes to steal Kevin away. When Kevin does ask her out, she does not want to go, but she goes, and he proposes to her. Eric and Annie try to have their own date.

Lucy fears her father's return to the church will upstage her wedding celebration. Roxanne introduces Chandler to her father. With Simon and Cecilia working together, one day he notices the business manager stealing from the company.

Lucy tells Kevin she is thinking of quitting school, and he tells her the wedding is off if she quits. Annie and Eric help another couple face their marital problems and share their own problems. Roxanne leaves the police department.

A big storm interferes with Lucy & Kevin's wedding plans. Kevin's family and many of the guests have trouble getting to the church.

Lucy and Kevin see a new doctor for their pregnancy and they have different opinions of her. Ruthie becomes interested in Martin's friend and starts wearing makeup and acting older. Charlie, the new father of Leanne's baby, is having a hard time and wants out of parenthood, so Eric enlists the help of an old, dear family friend.

When Martin and Mac go play darts in the pool hall with Kevin, he naughtily leaves without telling they are being mistaken for new police rookies, so notorious Venus picks up physically mature Martin, who gives her a ride home on request -even stranding Mac- but stays aloof until they discover both their fathers are Marines on war theater missions. Lucy makes sure dad finds out so Kevin starts calling round for Venus's phone number, which starts the rumor he's two-timing Lucy, who stupidly takes it seriously even from an amused petty criminal Kevin just arrested, while Mac spreads one about Martin scoring at high-school, where Venus turns up the next morning as substitute teacher. Another utterly undeserved 'my-house-my-rules' lecture from sanctimonious liar Eric decides Martin it's time to get emancipated and move out, that very evening. Then he spots two marines with a briefcase.Meanwhile Ben's own lie to hide he spent three days camping with Dr. Miranda Pearson has its own unpredictable consequences.

Ben Kinkirk practically invites himself to stay with brother Kevin to see Lucy and their baby, knowing absent Martin's apartment is available that weekend, and speculates about him dating Mary again now she has left Carlos. Annie has the morbid obsession that the family should attend a 'birthday party' for her late mother Jenny. Ruthie would rather spend that time with Vincent, and she runs a plan by Lucy while they shop for flowers. Meanwhile, Eric tries to help career woman Marie Wagner work out how to handle her mother's worsening physical and mental health.

Now Annie is away for four weeks, Eric wakes up with a stiff neck but already promised the twins to sleep a night in a tent in the garden- not so easy as it sounds, especially when the dog Happy goes missing, actually tagging along with Kevin's canines. Kevin couldn't turn down his brother Ben who wants to came spend time with them, but Lucy isn't ready for any visitors yet, so he stays with Eric, whom he assures he can safely straighten his neck having nurse training- a painful mistake. When the twins' attractive young teacher Margo makes a pass at Eric, the principal laughs away the very thought: the old goat must misinterpret. Lucy changes her mind and decides to get the guest room ready for Ben to stay in 'any time'. Eric's cardiologist has crushing news. Eric publicly rages at Margo's unacceptable immorality and takes his kids away, then insists to pig out with unhealthy food as a fake birthday and even lets Ben give him another neck-crack. Lucy smells a rat.

Robbie volunteers his car to give Simon a driving lesson as Eric again fails to turn up as promised. Alas, they bump into Matt's car. Wilson has moved and left instructions not to tell Mary his new location. Firefighter Ben Kinkirk volunteers to pick up a rescue dog so he can visit Mary, who instantly calls him her true love again, but ends up found out. Meanwhile Lucy, who refuses to take off Jeremy's ring, is openly jealous of such a hunky suitor, Ruthie pretends not to care. Robbie's brother Ronald drops by and is furious to hear that his muse Lucy dated Robbie. Annie resigns her teaching post without consulting anyone.

Preparations for Matt and Sarah's wedding are being made and things aren't going the way Eric or Annie planned. Matt decides he will convert to Judaism after a discussion with Sarah's dad who convinces Matt that he can convert on the wedding day much to Eric's dismay. Annie panics when Sarah's mother tells her to expect 100 kosher guests to her backyard pot luck dinner. Ruthie and Simon begin to resent Robbie being in the house. Ruthie wants her bedroom back forcing Robbie out now that Matt will be moving out and Simon gets upset that Matt chooses Robbie to be his best man and Sam and David call for Robbie instead of him. Lucy gets upset that Kevin won't come to Glen Oak for Matt's wedding and Ben decides to propose to Mary after Mary starts giving him the cold shoulder. Eric and Sarah's dad the Rabbi go head to head and it seems Matt and Sarah's wedding won't go ahead after all.

Eric becomes the new DJ for a college radio station and he is immediately is involved in a suicide call by a student. Lucy continues to be upset about the partnership of Kevin with Roxanne.

Ben Kinkirk practically invites himself to stay with brother Kevin to see Lucy and their baby, knowing absent Martin's apartment is available that weekend, and speculates about him dating Mary again now she has left Carlos. Annie has the morbid obsession that the family should attend a 'birthday party' for her late mother Jenny. Ruthie would rather spend that time with Vincent, and she runs a plan by Lucy while they shop for flowers. Meanwhile, Eric tries to help career woman Marie Wagner work out how to handle her mother's worsening physical and mental health.

Lucy and Kevin see a new doctor for their pregnancy and they have different opinions of her. Ruthie becomes interested in Martin's friend and starts wearing makeup and acting older. Charlie, the new father of Leanne's baby, is having a hard time and wants out of parenthood, so Eric enlists the help of an old, dear family friend.

Insecure Robbie hides his budding rebound-affair with Lucy. Wilson is deeply hurt when he finds fickle 'bride' Mary kissing fire-department coursemate Ben Kinkirk. Simon doesn't enjoy bully-mate Rick's girl abusing him as excuse to dump him. Annie's flippant advice nearly wrecks pupil Christy Parks' parents' marriage, yet she resists help even from Eric.

Ken Smith threatens the church because he disapproves of Mary's relationship with his son; Ben reads Lucy's diary; Simon's former girlfriend is rumored to be pregnant.

Now Annie is away for four weeks, Eric wakes up with a stiff neck but already promised the twins to sleep a night in a tent in the garden- not so easy as it sounds, especially when the dog Happy goes missing, actually tagging along with Kevin's canines. Kevin couldn't turn down his brother Ben who wants to came spend time with them, but Lucy isn't ready for any visitors yet, so he stays with Eric, whom he assures he can safely straighten his neck having nurse training- a painful mistake. When the twins' attractive young teacher Margo makes a pass at Eric, the principal laughs away the very thought: the old goat must misinterpret. Lucy changes her mind and decides to get the guest room ready for Ben to stay in 'any time'. Eric's cardiologist has crushing news. Eric publicly rages at Margo's unacceptable immorality and takes his kids away, then insists to pig out with unhealthy food as a fake birthday and even lets Ben give him another neck-crack. Lucy smells a rat.