When Kevin thinks the best he can do in math is a B, his teacher Mr. Collins sets him the task of getting an A and even offers him private lessons. When Mr. Collins suddenly pulls out of the lessons shortly before the exams, Kevin feels betrayed and fills his exam with nonsensical answers.

While passing notes during class, Kevin asks Lisa Berlini to go to the dance with him. She says okay, but she decides to go with Brad Gaines after he asks her. While eating lunch with Winnie and Paul, Kevin feels himself falling back in love with Winnie, but she is goes to the dance with Kirk McCray. Kevin tries to make Winnie jealous by dancing with an unidentified girl...

While Kevin tries to take his relationship with Winnie another step, Wayne's friend Wart returns from Vietnam a changed man. Kevin decides to steal the opposing team's mascot at the homecoming football game, but the childish prank is overshadowed by a realization of how Wart has been affected by the war.

Some people never find true love, but Kevin believes he did. He had what most people search all their lives for, but he blew it. When Winnie comes over for a study session while his parents were away, Kevin wants to relationship to go further. Winnie sees through his plan. She does stay, but they just fall asleep together. The next day, though, he tells his friends a different story. When Winnie finds out, she dumps him.

Kevin sees Winnie for the first time since they broke up. He discovers that she a Roger have split up, too. When Winnie is in a car accident, Kevin rides over to see her at home, but her parents say she doesn't want to see him. Kevin leaves, but returns and climbs up to Winnie's bedroom window. They tell each other, "I love you."

Kevin wants to take Susan Fisher to the dance, but she has a boyfriend, Donald Wallach. However, he hears rumors that they have broken up, so he's about to ask her until Donald interferes. Linda Sloan, his lab partner, suggests that they go as friends so they do. They have a good time in the beginning, but it turns sour when while Linda is dancing with Steve Padway, Kevin dances with Susan and they have punch. How is it bad? Susan leaves and Linda comes back and asks if they half-filled cup of punch that Susan left is for her, but Kevin says that it's Susan's in a not-so-nice sort of way. That basically breaks Linda's heart and she leaves. Kevin is about to ask Susan to dance again but she's dancing with Donald, so Kevin leaves, not knowing that Winnie came in, probably looking for him.

News of Kevin's break-up with Winnie has spread quickly throughout Robert F Kennedy Junior High. Kevin is still in denial though and has Paul organise a party at his place so that Kevin can get Winnie alone. In an effort to make Winnie jealous, Kevin turns up with Madeline on his arm. When Kevin finally does get Winnie alone, she tells him she needs him to be her friend, but only her friend.

Kevin isn't sure whose side to take when Karen decides to enroll in a liberal college and Jack is dead-set against it.

Kevin is excited when a joint field trip is organized with Winnie's school. But things do not work out so well when Kevin has a hard time tearing Winnie away from her new friends. Things go from bad to worse when Winnie tells Kevin she has met someone else.

Kevin enters uncharted waters when he meets an older girl during his summer vacation.

To make up for being rude and insenstive to Winnie, Kevin makes her a Valentine's card, but it is accidently placed in Becky Slater's locker. When Becky finds the card, she thinks Kevin wants her back - setting the two up for a showdown.

When Kevin learns that Paul gets a weekly allowance of five dollars and that there is money to be made being a caddy, he goes to work for the first time.

The Arnold and Pfeiffer family go on a joint family trip. Kevin meets a wild young girl who smokes! Kevin and Cara have a good time together, so much so that he ditches dinner with his family to see her one last time - expecting to never see her again.

While Kevin is asked to consider his future, Wayne makes a decision to leave school and join the army. Jack and Norma try to talk Wayne out of it, but he won't listen. Wayne and his friend Wart go together to the army testing station. Jack follows and apologises to Wayne for not being a better father to him.

Kevin has trouble in math class when he comes up against a teacher who Kevin thinks is completely unreasonable.

Pressure is brought to bear on Kevin and Winnie's relationship when they are invited to a notorious make-out party.

Kevin wants to date Inga and he uses Winnie to help him get a date. Winnie does the same thing to Kevin, getting set up with new guy Matt Stevens. They end up double-dating at the Spring Dance, bringing some tension to the evening. But when Matt and Inga begin to dance together, Winnie and Kevin rediscover their feelings for each other.

Kevin thinks his mother is being over-protective when she tries to stop him from playing tackle football after school.

Kevin decides cheating is the only way to get ahead in math class.

When Jack begins to complain about dry rot in the house, Kevin begins to think that his father might consider moving. When it is revealed that the Arnolds are staying put and it is the Coopers who are moving out, Kevin buys Winnie a ring as "insurance." Kevin decides to attend Karen's graduation from high school rather than watch Winnie leave.

Kevin has to cancel a date with Winnie to finish a homework assignment with Madeline, who has already kissed him once. To make matters worse, when he flees Madeline's, he drops a bracelet that Winnie had engraved for him.

When Kevin and Wayne decide it's too cramped for two grown boys in their bedroom, they decide one of them should be allowed to move into Karen's room, now that she's away at college. The trouble is, who is going to be the one to go?

Jack wants to help Karen out by fixing up the house she is now living in. But father and daughter go head-to-head when he discovers she is living there with a man.

Kevin does not understand why Wayne's new girlfriend, Sandy, is with him. The tables are turned when Sandy approaches Kevin behind Wayne's back and kisses him. In fact, they kiss all over the school. But when Sandy breaks up with Wayne to be with Kevin, Kev can't bring himself to betray his brother.

When Paul is voted "brainiest" in Lisa Berlini's latest poll, he goes through a crisis but is helped through it by Mrs. Arnold - who he also develops a crush on.