In the second season-opener, Eric and Annie renew their vows--- they are getting married again. The kids aren't really excited about the wedding, but Ruthie wants to wear a tuxedo. Mary is tired of walking in crutches, but is afraid she might fall if she doesn't use them. Lucy is still angry that Jimmy Moon is going out with Ashley now, but invites them to the wedding; she later UN-invites them. Matt and Heather are spending time together before she goes away to school. Simon decides to wait before moving in his new room in the attic. Eric helps a woman, Nora, talk to the guy who killed her husband a few years ago.

Eric and Annie are taking the day off to spend time together since it's the first day of school for the 5 Camden children. Although, things go array on their first day back in school. Ruthie is caught wearing a hat backwards which violates school policy. Ruthie insists on wearing her cap backwards and ends up getting a 'time out' by her teacher. During Simon's first day at Junior High School, he is caught with a knife that his mother had given him to cut his chicken. Simon is suspended for a day. Mary offers to help Lucy with her locker that doesn't open because of Eric's old lock that he had given her. Meanwhile, when Lucy takes an aspirin that Mary had given her, the principal notices them with the medicine and takes them to the office. Matt later joins his sisters after Mr. Koper catches him with a beeper- the one Eric left in Matt's jacket after borrowing it. All three of them are suspended for a day. Also, Mary learns that Mr. Koper is her new basketball coach and he's going to help her build her knee strength up. Lastly, a boy threatening to jump off his apartment building interrupts Eric and Annie's day off. Eric then helps to work things out between him and his mother.

Mary tries to make Wilson say that he 'loves her', but Wilson thinks it's a big commitment and that they haven't known each other long enough to say those words to each other. Meanwhile, Simon and Ruthie are reading Matt's love letters to Heather and get caught. Matt tricks them by addressing one of the letters to 'Mrs. Matt Camden'. By this, Simon tells his parents that Matt and Heather got married over the summer, but they later learn that it was all a joke. Also, Eric helps Lucy's friend, Laurie, get closer to her mother.

Eric accuses Matt of doing drugs after finding marijuana in the house and after Matt's friend Mitch asks him to hold his marijuana. Meanwhile, at the same time Eric finds the marijuana in the house, it leads Annie to a confession of own her about her experimentation. Also, Simon teaches Ruthie about the fine art of doing laundry, even though Ruthie is little too young. Lastly, Lucy introduces her new clothing of ALL black and her new boyfriend Rod to the family.

A member of Eric's congregation (Mrs. Bink) persuades him to investigate the real reason of why her best friend (Mrs. Hinkle) is moving into a retirement home. Meanwhile, Simon and Ruthie are performing an experiment and try to convince Matt that Simon is shrinking, but the tables suddenly turns. Also, Lucy tries to get to the bottom of one of her classmate, Shelby's apparent eating disorder and who might be bulimic.

The Camden kids get a lesson in love as Mary decides to call it a quits with Wilson. Simon is obsessed with getting his first girlfriend, while Ruthie learns the do's and don'ts of kissing on the school playground. Matt receives devastating news from his girlfriend Heather, which leads him on a long journey to Philadelphia. Meanwhile, Lucy laments over being single until she accidentally gets close to the school hunk.

Simon becomes emotionally involved with his best friend's sister, who's a gang member. Meanwhile, in a show of independence, Lucy dons makeup and revealing wardrobe with her friend's to meet guys at the mall, and gets caught by Annie. In addition, Ruthie questions the speed of light.

Against Eric's advice, Matt takes a job caring for a dying boy named Steve. Annie goes into the muffin-making business after being convinced by her daughters Mary & Lucy. Annie goes into business with a cookie shop owner, David Friel, who's looking to expand his profits, although it's much harder work for Annie more than she had anticipated. Also, Ruthie teaches Simon a tough lesson about the art of being a salesperson when being his competition in selling greeting cards.

Against Eric's wishes, Simon asks Mrs. Kerjesz (Guest-star real life survivor, Rita Zoharm) to tell her story about being in the Holocaust in his class presentation. To form a strong sisterly bond, Mary and Lucy decide to hate Matt's new girlfriend for no good reason and end up hurting her feelings and breaking up with Matt. Also, Annie suffers heartache when Ruthie tells her she 'hates her' for making her clean the walls in her room after scribbling crayons on them.

Mary coerces Matt into asking his friend Brian (Guest-star Jason Behr) to take her out on a date despite his lack of interest in her. Although things begin to heat up between the two kids while on the date. Meanwhile, Lucy is invited to a sleepover of popular girls, but Lucy is unaware of the group's real intentions for inviting her. Also, Simon begins to teach Ruthie how to swim without taking lessons. Lastly, Eric becomes convinced he's fat and thinks he's getting away with cheating on his diet.

Eric's no-nonsense father, John "The Colonel" (Guest star Peter Graves) returns when he learns an array of problems in the Camden household. Mary is jealous of a new member of the basketball team who is getting a lot of the attention. Lucy's declining grades are due to her hanging around with a bad crowd, while Ruthie needs to copy Simon in his quest to be a magician. Meanwhile, Eric is oblivious to all of the family troubles around him, as he is preoccupied with writing a sermon that is to be covered by a camera crew. Meanwhile, Annie is doing all the chores at home and at church alone while everyone else is doing their own thing.

Eric and Annie try not suspecting the worst when they discover money missing from the church treasury and all the evidence points to Lou, the church treasurer. Later, they all find out it is for his disabled son who was kicked out of his home and needs to find a new one. Believing that Coach Koper has more than basketball on his mind where Mary's concerned, Matt and Lucy risk alienating their sister to discover the truth. Also, Simon lets the game of golf overwhelm his life and ends up breaking a lot of things.

Lucy must choose between her new boyfriend Rod, or her former boyfriend Jimmy Moon after he is dumped by his old girlfriend Ashley, and wants Lucy back. While Lucy makes her decision, the rest of the Camden children are making bets to which guy Lucy will choose. Eric and Annie are at odds when they help newly married couples communicate with each other, but ends up getting into a big fight themselves when discussing their burial plot arrangements within their own families. Also, a visit from Annie's father stirs up further problems in the Camden household when he arrives without Ginger after recently breaking up due to his hair piece (toupee).

Eric helps a single mother named Harriet and her son Clarence to try to convince the IRS that she shouldn't be responsible for her ex-boyfriend's enormous debts. Annie confronts the kids about their lack of good manners after an incident at a "Free Sunday Blue-Collar Special Lunch" at a restaurant. The kids do not take Annie seriously and fool around. Meanwhile, Matt accuses Mary and Lucy of placing a personal ad in his name in the school newspaper for a date. Also, Simon and Ruthie try to figure out how to pay off Happy's accidental credit and purchase.

Convinced that she'll fail in her basketball comeback, Mary develops a horrible attitude making her quite unpleasant. Eric laments that Mary never talks to him anymore. Lucy is excited over the prospect of her best friend Suzanne coming to visit, until she learns the girl ran away from home. Afraid of his science teacher, Mrs. Hunter, Simon loses his confidence in his ability to complete a class project and feigns illness to avoid it. Also, Ruthie is fearful of her first field trip thinking that she'll get lost from the group.

When Eric helps his friend Reverend Morgan Hamilton secretly meet up with his wife's ex-husband Kevin, they are shocked at the outcome that he's paralyzed from the waist down. While covering for the Hamilton's daughter Keesha, Lucy unexpectedly goes on a double date with them. Soon Annie and Mrs. Hamilton bust the girls when taking Ruthie and Lynn to the movies. Back at school, Mary clandestinely dates one of Lucy's classmates.

Lucy gets an invitation to have pizza with two rebellious friends, then blames herself for the tragic car accident that claims her friend's life, and her sister in the hospital. After Lucy's friend is killed, the family rallies around her, noticing her unusually distant behavior. In addition, Mary does a favor for her ex-boyfriend Wilson and baby-sits his son Billy so he can go to his prom. Also, Simon gets his own room while Matt moves into the attic.

After Eric agrees to take in a French exchange student (Guy) as a temporary border, no one but Ruthie suspects the young man is actually a con artist. Suave and romantic, the border attracts both Mary and Lucy after he flirts with them. Simon and Ruthie get sick when they try to smoke Guy's cigarettes. Also, Guy steals Matt's date. Lastly, Eric and Annie discover e-mail and chat-rooms on Guy's laptop computer and begin a romance with each other over the internet.

Eric tries to unravel the mystery surrounding a young homeless girl (Sarah James) that Simon brings home who's lost. Eric tries to help her and her alcoholic father, Joe James. Matt delights the prospect of going away to college. Matt says he needs personal space when having a older woman sleep-over. Also, sharing a room begins to fuel differences between Mary and Lucy.

Eric asks Matt to take his friend's daughter to the senior prom, but he is unaware of her tainted style and her being a harlot. Eric gets "Snappy the Stegosaurus" tickets from his ex-girlfriend for Ruthie. Meanwhile, Simon is uncomfortable after viewing a school film on the 'facts of life' while Ruthie learns the truth about her costume character hero. Also, Mary and Lucy trick their way into a date with boys they don't know, but the joke's on them.

When Mary and Wilson decide to get back together, it begins to make Annie worrisome about their togetherness since Wilson and and his son Billy are hanging around the Camden house a lot more. Later on, Matt catches Wilson and Mary both sleeping together in her bed and throws a fit at them. Meanwhile, Lucy is also worried when her former boyfriends, Jimmy Moon & Rod team up to follow Eric around for a class project. The two guys even start calling themselves Eric's MIT's: Minister's In Training. Also, Simon begins to train Happy for a role in a dog commercial while Matt is looking for the right time to tell his family that he got a job in Washington D.C. over the summer. Lastly, after Happy wins the commercial gig and is put on television, Happy's original owner and his daughter see Happy on television and want her back.

In the second season finale, Eric and Annie are shocked and saddened that Mary might be pregnant after a talk with her doctor over the phone. Meanwhile, Matt makes an announcement that he is leaving home sooner than expected so he can begin a summer training program in Washington D.C. Although, Matt soon realizes that "The Colonel" was the real reason of how he got into the program and must decide whether he should take it or not. Also, Simon and Ruthie are despondent when Happy's original owner comes to claim her. The family then tries their best efforts into getting her back. Also, Annie's father (Charles) and Ginger create a false engagement to discourage Eric and Annie when trying to rescue Happy. By the end, the family gets Happy back after she escapes from her owners backyard and Charles & Ginger decide to become officially engaged even though it was just a rumor at first. Lastly, it is official that there will be an addition to the family in less than 9 months when the family finds out that Annie is the one who's pregnant.