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.
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.
Since the new associate pastor is doing a good job, Eric decides to give up his job as pastor, and tires of everyone asking him for advice. Kevin and Roxanne seem to have a good working relationship and this worries Lucy.
Eric tries to help Chandler after the young minister learns that his father is dying of lung cancer, but Chandler rejects Eric's aid and pushes him away. 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. Elsewhere, Annie is shocked when she finds a pack of cigarettes in Simon's bedroom. Lastly, Ruthie's friend Peter begs her to lie and not tell his mother that he smokes.
Lucy dreams that Kevin takes her out for Valentines Day, and Roxanne comes to steal Kevin away. When Kevin does ask her out for real, she does not want to go. She does go, and he proposes to Lucy. 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.
The church needs a new roof, and Chandler talks Eric into helping him ask a stubborn parishioner. She agrees because she needs some help as well. Annie finds out the twins are stealing money. Lucy and Roxanne go out for a girl's night.
Ruthie's friend Peter is upset that his mother is marrying a man he does not know that well. Eric counsels him and the mother. Meanwhile Chandler helps another couple who wants to marry but has several problems with their relationship.
Chandler's father is dying. Eric tries to get Chandler and his father to talk before he dies. Simon asks Cecilia to the prom. Ruthie has problems but does not want to talk about it. Mary has news for her father. Sarah thinks she is pregnant.