Cory Matthews winds up with detention after trying to listen to a Phillies game in class, while his teacher, Mr. Feeny, is trying to teach the class the great value that love has in all of their lives. However, Cory doesn't find love and girls such a good thing when his older brother, Eric, takes a girl to a Phillies game instead of him. This prompts Cory to move into his treehouse.
Cory is worried about the class water gun war, as he has no heavy-duty water gun to compete with. However, he soon strikes up a deal with Mr. Feeny, who makes Cory a deal: if he paints Mr. Feeny's shutters, he will give Cory the money to buy a new water gun. However, Cory rushes in haste to buy the water gun, and he gets green paint all over the fence.
Cory is determined to be in the geography bee when he finds out that the winner gets to be bat-boy at the opening game of the world series. But, when he and Minkus trade places in the academic world, they end up trading places in the social world, too. Meanwhile, Eric is embarrassed when his parents show up at the same concert as he and a date.
Cory cheats on an I.Q. test, and is labeled the smartest kid in class. However, the consequences for getting away with it are worse than getting caught; Cory may be transferred into a new school for smart kids. Meanwhile, Eric takes Morgan to pick out a Halloween costume, and she ends up being a zombie.
Mr. Feeny has his class predict what their lives will be like by their class reunion. When he gives Cory an incomplete, Cory gives up on his dream of being a center fielder, until his dad realizes just what he needs. Meanwhile, Morgan trades her mother's gold necklace for a plastic one and has to get it back.
The father/son softball game is coming up and Cory and Eric don't want to play. They try to come up with a plan, but before they can Alan finds out how they feel. He tells them that the game was cancelled, but Cory finds out (from Topanga) that the game, in fact, was played. Cory and Eric feel bad and make amends with Alan, planning a make-up game for the following weekend.
Shawn is forced to stay in Cory's room, in secrecy, because of a cherry bomb prank gone wrong in Alan's grocery store mailbox, which keeps him from going home. Cory keeps it a secret the best he can, but Amy and Alan know something is up because Mr. Feeny saw Shawn climb up to Cory's window. They play along until Shawn leaves and Cory comes clean with them. Shawn finally comes clean and goes back home. Shawn and Cory both learn valuable lessons. Shawn learns that he is not forced to be a bad kid and can be on Cory's "side of the line."
Poor Shawn: so many girls, so little time! When two girls are after him at once, he decides that he and Cory should take turns dating them so he can decide who he likes better. But they're both in trouble when Cory falls in love with one of the girls and Shawn can't get along with the other one. Meanwhile, Alan and Amy fight about spending too much money.
Assigned a Thanksgiving weekend assignment to consider how class divisions between the haves and have-nots are at the heart of the conflict in Rwanda, Cory and Shawn hope the Thanksgiving spirit will encourage their families to be better friends, but having the holiday feast at the Hunters' trailer park home is not what the reluctant Matthews family had in mind. Nor, it turns out, does the situation sit well with the other trailer park residents. Meanwhile, Frankie's little brother Herman asks permission to court Morgan; and everyone winds up eating dinner at Frankie's table which "always has room for more."
Shawn is in a state of shock when his very beautiful, very haughty girlfriend, Jennifer, dumps him. She agrees to get back together on one condition: that Shawn has nothing to do with Cory ever again. This doesn't set well with either of them and the two friends begin seeing each other covertly to avoid Jennifer's wrath. Only the levelheaded Topanga has the insight to solve Cory and Shawn's dilemma. Meanwhile, Eric thinks he's onto a get-rich-quick scheme when he rents a theater for a one-man show he's written called Look at Me, Look at Me, and charges $30 a ticket. (Touchstone press release)
Comedy veterans Buddy Hackett and Soupy Sales play two businessmen of a shady sort who hire Cory and, subsequently, Shawn to run "errands" for them. Since it is just before Christmas, Cory decides he can use the money for his holiday shopping. However, Cory quits once he figures out that the two gents are not on the up-and-up. Shawn takes over, but Cory soon persuades his pal to quit as well, before he gets in over his head - or hit over the head. (Touchstone press release.)
Shawn, bent on proving to Feeny that he can make it in the business world, convinces Cory to turn Feeny's quaint home into a Bed & Breakfast Inn economics-class project while their unsuspecting teacher is out of town. Meanwhile, Eric and Feeny surprise each other when they end up better friends while on vacation at the same hotel - especially when Eric passes up a date with a female bartender to console Feeny over the failure of his long-term long distance romance.
The war between the sexes starts heating up at John Adams High when the boys realize that girls expect different things when out on a date. When it is suggested to Cory that his school newspaper column is a tad boring, Shawn gives him a story idea on dating and sexual harassment based on the book they're reading in Mr. Feeny's class: Black Like Me. After Cory emerges from the bathroom in full regalia, it is decided that Shawn would make a better girl: he's studied them much more carefully. Making his debut at school, Shawn, now Veronica Wasboyski, immediately gets asked out by Gary, one of the school's more well-known Lotharios. Shawn soon finds out what it's like to push off a teen boy's advances. Meanwhile, Eric tries to teach mountain-reared Lonnie how to get along with city men.
The producers of a dull but prestigious academic bowl sense a hit after Cory, Shawn and Topanga become star contestants by enlivening the show with their humor and pop culture knowledge. But the price of success is changing the questions from brainy to brainless in order to allow Cory and Shawn to win.
Jack is excited about his new girlfriend, but things take a bad turn when it's revealed that she's a witch, needing to sacrifice a Hunter to ensure her immortality during a Halloween party. An unsuspecting Eric goes on a date with a teenaged witch named Sabrina. Guest Hart crosses over in her role from Sabrina, the Teenage Witch. Meanwhile, Cory takes Topanga on her first airplane ride, flown by a not-so-bright pilot.
Shawn's steadfast rule of dating girls only for a fixed two-week period leads him to break up with Angela; then he finds himself falling in love with the owner of a purse he finds, since the contents indicate that she is the girl of his dreams. Meanwhile, Eric studies for a test with the help of an invisible Mr. Feeny, while Jack wonders about Eric's sanity.
Confident Cory is amazed when Shawn is more successful at their work-study jobs: Shawn proves to be a whiz at public relations, while Cory gets stuck in the mail room. Meanwhile, Amy goes back to college, but her participation in Eric's creative writing class embarrasses him with her extremely frank self-revelations.
Cory wonders if he's being henpecked when Topanga spends the holidays with the Matthews family and takes charge of the festivities. Cory plans to surprise Topanga, who's spending Christmas at his house, with a promise ring that means they'll be together forever. But he's unnerved by moments of doubt after learning that he and Topanga - who have so much in common---have very different holiday traditions: she drinks cider rather than eggnog; she prefers a fresh-cut tree to an aluminum one; and she opens gifts on Christmas Eve, not in the morning. When it seems Topanga's unwilling to compromise, Cory has serious misgivings about the ring - and their future.
A fun and frenzied spoof of the movie Scream finds a shrouded killer terrorizing the teens. The mystery begins when the gang is locked inside the school during detention. Before too long they receive an ominous message written in blood, and a classmate is fatally punctured with a pencil. They have to try to find out who is behind the killings and get out alive.
Cory tries to get over his estrangement from Topanga by drinking alcohol at a party, but there's more trouble in store after Cory convinces Shawn to drink too. Later that day, Cory and Shawn are arrested, and vow that they will never drink again. Cory keeps his promise; Shawn doesn't. Shawn has some choices to make.
After a surprisingly superb Shakespearean acting debut, Eric is invited to study at two prestigious theatrical institutions-but instead he opts to join the hit TV sitcom Kid Gets Acquainted with the Universe. Jack and Shawn are sick with chicken pox, and Topanga nurses them back to health despite Shawn's discomfort being around her.
A reconciled Cory and Topanga pretend to be estranged so Shawn can be the one to "reunite" them, despite Mr. Feeny's warning that they are "boarding the train of terrible mistakes". Shawn's mediation tactics lead to more turmoil for the duo: when he encourages them to be open about their hurt feelings, they insult each other and break up again. It's finally up to Shawn (with an assist from Cory's parents) to set things straight once and for all. Also Eric has trouble figuring out his word-a-day calender.
Now that Cory and Topanga both know that Shawn and Angela still love each other, they have conflicting views on what to do about it -- especially when, unbeknownst to each other, Cory invites Shawn to join their family Christmas while Topanga invites Angela. Topanga wants to let well enough alone, but Cory misses no opportunity to throw his friends together, but the consequences are not exactly what he wants: after they finally kiss, Angela expresses her love for Shawn, but he protests that he is "not ready" to make the same commitment and she storms off for good. Meanwhile, Eric takes his store Santa job a little too seriously when he convinces Rachel and Jack to help him steal his family's gifts in order to make underprivileged children happy.
Shawn and Angela draw up a restraining order forbidding Cory and Topanga from any further interference in their romantic lives, but Shawn still has a difficult time seeing Angela date someone else -- especially when they all wind up in the same restaurant together. Meanwhile, Alan tries to overcome his feeling too old for another baby by shopping for a motorcycle, and Eric becomes an over-enthusiastic birthing coach.
Shawn and Jack's ne'er-do-well father Chet reappears on campus suddenly and, confronted by an angry Shawn, promises that he has come to stay and make amends to his sons for never being there for them. But after treating them to a steak dinner and consuming a piece of Rachel's "killer" chocolate cake, Chet suffers a heart attack. Shawn reveals that his anger at his father is partly fear that his own apparent inability to connect emotionally is inherited, and it appears a reconciliation might taken place -- then Chet has a second attack and dies. This is a powerful and quite touching episode, with a particularly affecting performance from Rider Strong, marred only by the obligatory presence of the entire cast in the emergency ward.
Cory and Topanga play "The Fiancé Game" to prove how compatible they are, and are crushed when Eric and Rachel prove to know far more about each other than they do. Topanga suggests a quick solution: they should live together on campus and really get to know each other. (Cory mistakenly thinks this means sex and buys satin pajamas and sheets.) Living together shows them sides of each other they're not too crazy about: for example, his big toe clipping flies across the room and lodges in her already-applied facial cream. Meanwhile, Shawn has ignored Jack's repeated call about clearing out Chet's trailer, and, once persuaded, is freshly outraged to discover evidence that Chet went to Jack's stepfather for help in financing Shawn's college education. He decides to take the trailer out on the highway and convinces Cory to accompany him "for the weekend," but oddly insists on saying goodbye to Topanga. Then Jack, who has been struggling to contain his own grief in deference to Shawn's feelings, falls apart and cries helplessly in Rachel's arms; and Eric walks in to find them kissing passionately.
To take his mind off his dad's death, Shawn takes Cory along on a soul-searching road trip in Chet's trailer, where they end up at a truck stop where the young waitresses (portrayed by band Nobody's Angel) are searching for something more, just like Shawn -- and Cory discovers that Shawn has no intention of returning home. Shawn must persuade Cory to let him go, just as the girls' father/boss must let them find their own way. Meanwhile, Eric tries to understand the kiss he witnessed between Jack and Rachel -- as do they; and Shawn discovers that his father, a truck stop regular, was secretly very proud of him. In a surprise code, Chet's ghost appears to Shawn as father and son finally reconcile their differences and Shawn drives off into his uncertain future.
Cory becomes upset when Topanga seems less interested in spending Valentine's Day with him than with consoling Amy about the last stages of her pregnancy, so when Topanga decides to cheer Amy up with a baby shower, Cory takes charge. Unfortunately his concept of a baby shower turns out to be a female version of a bachelor party, complete with a pizza-guy stripper, but the disgusted guests are distracted when Amy's waters break and she is rushed to hospital for a premature delivery -- one which the new Matthews baby may not survive. Meanwhile, Shawn is still on the road to nowhere; Morgan is less than happy about the arrival of a new sibling; and Jack and Rachel worry about the effect of revealing their new relationship to Eric -- who announces he already knows, and is moving out.
While everyone anxiously awaits news about newly born Joshua Matthews, Cory's continued self-absorption alienates Topanga, who now considers herself a member of the Matthews family. Even Eric's little friend Tommy views Joshua as his new "brother." It's only when Shawn returns and is accepted by the elder Matthews as "family" does Cory realize where his true values lie. (And, of course, the baby turns out to be fine, though the anxiety of the other parents of premature infants is not minimized.)
Topanga is in wedding plan mode, and persuades (strongarms) Cory into accompanying her, Shawn and Angela to a posh ceremony in the hall of her dreams -- where an unhappy father of the bride offers Cory a million dollars to marry his daughter. Meanwhile, Tommy pleads with a heartbroken Eric to adopt him so he won't have to move to California, and Eric pretends to no longer want Tommy so he can be happy with his new family.
The series returns to form as Cory and Shawn unite for the last time as a "bad boy" team to help Mr. Feeny, whose hesitation in declaring his feelings for Dean Bolander looks like a fatal mistake when her ex-husband Curtis returns from an expedition bent on winning her back. Shawn and Cory trash the interloper's lab and blame in on a jealous rage by Feeny -- who then saves Dean Bolander's life for real by swatting the rare bee brought back by Curtis just before it stings his highly allergic love. She explains that she was not taken in for a moment by the boys' ruse -- just impressed that Feeny's students care about him so much. Meanwhile, Rachel challenges Jack to take her out on a real date.
When Cory and Topanga make an agreement to tell the truth about everything and everyone, their totally honest pact creates tension at Rachel and Jack's first dinner party. When the party guests play a game that forces them to also tell the truth, personal feelings are revealed that they would rather keep to themselves.
While Cory deals with his anxieties about his impending marriage, Topanga's parents (real-life couple Annette O'Toole and Michael McKean) come for a visit and reveal some unexpected news: they are on the brink of separating. Meanwhile, Feeny pops the question to Dean Bolander (real-life husband and wife William Daniels and Bonnie Bartlett), and they agree to get married in the Matthews living-room; and a self-pitying Eric asks Shawn for advice on how to cope with losing Rachel to Jack.
Conclusion of last season's cliffhanger. Distraught to learn that her parents are getting divorced, Topanga tells Cory she wants to call off their wedding, so he and Shawn travel to Pittsburgh in an attempt to persuade her parents to get back together-only to learn that Jedediah has left Rhiannon for another woman. Eric gets a new haircut.
Since both couples-Cory and Topanga, Shawn and Angela-have split up, the girls decide to challenge the boys to a wresting match which will decide who gets to keep the apartment. Pro wrestler Mankind refs the match, which the girls win handily-and Eric vows revenge on Topanga for beating him up so easily.
Angela, who has been mysteriously reluctant to get back together with Shawn, deals with her reasons after a surprise visit from her military father. Shawn tries to impress Angela by going through basic training, but she is unmoved until Sgt. Moore reveals the reason for her pessimism: he was deserted by Angela's mother, and she fears she will do the same to Shawn. Meanwhile, Cory persists in getting Topanga to renew their engagement.
Topanga develops an acute case of Cory-itis after he overreacts to his low score in a magazine's health quiz (which indicates he should already be dead). Meanwhile, Eric joins the family business and shocks his father by doing well at it-while Amy, in turn, is shocked at Alan's lack of faith in his son.
After a war of harmless pranks goes too far and threatens to break up the old gang, Feeney steps in to help mend fences. But he finds that even his intervention may not be enough to reunite the once-tight teens. We they see into the future, a few years later, to see what everyone will be like if they go their separate ways.