S1 E1 • Putting Two 'n Two Together

Mary-Kate and Ashley work as matchmakers to get Mrs. Baker and Mr. Fillmore together so that Carrie, a student of Kevin, will be hired as their new baby-sitter.

Première diffusion : 25 septembre 1998

S1 E2 • The Tutor

Kevin hires a tutor for Mary-Kate. Ashley convinces Mary-Kate to switch places so she can flirt with Taylor, the tutor, but their scheme doesn't go as planned; Carrie convinces Kevin to ask out a woman at a coffee shop.

Première diffusion : 2 octobre 1998

S1 E3 • Prelude to a Kiss

Ashley becomes jealous when, during a slumber party, Mary-Kate reveals that she has kissed a boy; After Paul finds out Carrie was over at Kevin's he assumes their relationship is more than it actually is - which leads to rumors about them being a couple.

Première diffusion : 9 octobre 1998

S1 E4 • First Crush

Ashley gets assigned Pokey Valentine, her crush, as a partner on a history project. She becomes jealous when Pokey and Mary-Kate begin spending time together.

Première diffusion : 16 octobre 1998

S1 E5 • Breaking Them Up is Hard to Do

When Kevin starts dating a woman, Marci, they fear that she will replace Carrie. The twins scheme to destroy Kevin and Marci's relationship.

Première diffusion : 23 octobre 1998

S1 E6 • Nightmare on Carrie's Street

Mary-Kate and Ashley switch costumes with Max and Brian so that they can attend Carrie's Halloween party, from which they were banned by Kevin.

Première diffusion : 30 octobre 1998

S1 E7 • The Heartbreak Kid

Mary-Kate, who has had a bad past with animals, gets a homing pigeon which eventually flies away, causing heartbreak to Mary-Kate.

Première diffusion : 6 novembre 1998

S1 E8 • You've Got a Friend

Ashley makes a new friend, Nicole, which leads Mary-Kate to feel jealousy; Eddie and Kevin argue while Carrie tries to be a mediator.

Première diffusion : 13 novembre 1998

S1 E9 • Model Behavior

Ashley is excited when a model search for a teen magazine takes place at their school, but Mary-Kate is chosen over Ashley.

Première diffusion : 20 novembre 1998

S1 E10 • Peeping Twins

After Kevin buys a new telescope, Mary-Kate and Ashley snoop into other people's business. They think they witness their neighbor, kindly old Mrs. Baker, murdering her elderly boyfriend, Mr. Fillmore. The situation gets even scarier for the twins when Kevin asks Mrs. Baker to take care of them so he can attend a jazz concert with Carrie. Meanwhile, Carrie hears Kevin play the saxophone and encourages him to perform for audiences as he used to.

Première diffusion : 27 novembre 1998

S1 E11 • A Very Carrie Christmas

Carrie accepts Kevin's invitation to send Christmas with him and the girls. Carrie brings a homeless man, Walter, as her guest to Christmas dinner. Sometime during dinner, everyone is shocked to find Walter stole all the gifts.

Première diffusion : 11 décembre 1998

S1 E12 • Let's Dance

Mary-Kate and Ashley prepare for their first school dance. Mary-Kate wants to dance with Jeremy, but he tells her that he only knows how to swing dance. Carrie teaches Mary-Kate how to swing dance. At the dance, however, they learn that Jeremy doesn't know how to swing dance at all - he lied to her because he doesn't know how to dance.

Première diffusion : 8 janvier 1999

S1 E13 • Split Decision

Mary-Kate and Ashley begin arguing more frequently which causes them to move into seperate rooms. They soon learn that they miss each other and move back into the same room; Kevin's doctor and Carrie begin dating and soon she thinks that Dr. Martinson wears a bra, which leads to an embarrasing moment for both Kevin and Carrie.

Première diffusion : 15 janvier 1999

S1 E14 • My Boyfriend's Back

Carrie's old boyfriend, Alex Reardon, is back in town and Carrie feels she must make herself look as successful as he is. Carrie convinces Kevin to pretend to be Carrie's fiance to make Alex jealous; The twins have a party which doesn't go quite as planned.

Première diffusion : 29 janvier 1999

S1 E15 • No Man's Land

Mary-Kate is forced to teach Ashley all about sports when she develops a crush on Eric, a sports fan; Kevin must appoligize to Carrie when he causes waves in their friendship.

Première diffusion : 12 février 1999

S1 E16 • Carrie Moves In

Trouble starts when Carrie moves into Kevin's basement.

Première diffusion : 19 février 1999

S1 E17 • Mr. Right Under Your Nose

Mary-Kate and Ashley places a bet with the school's fund raiser money; Carrie becomes jealous when Kevin starts dating one of her friends.

Première diffusion : 26 février 1999

S1 E18 • Welcome Matt

Kevin is not pleased when his brother, Matt, comes to visit. Kevin knows his brother is immature and unreliable, which becomes increasingly clear after an incident at a hockey game.

Première diffusion : 12 mars 1999

S1 E19 • The Odd Couples

The twins are paired up with male partners for a school assignment to teach them about marriage; Against Kevin's wishes, Carrie goes on a date with Matt.

Première diffusion : 19 mars 1999

S1 E20 • When a Man Leaves a Woman

Kevin realizes that he is bored with his inhibited girlfriend, Nancy, and agonizes over how to end the relationship. When he tries, Nancy misinterprets him and becomes even more serious about him. Matt's advice is of no use, and Carrie is upset because Nancy is her friend. Finally, Kevin gently reveals his true feelings to Nancy, who overreacts. Carrie appreciates that Kevin is sensitive and unwilling to be cruel. Meanwhile, knowing how much Mary-Kate loved horseback riding when her mother was alive, Carrie invites her to come on Carrie's weekly ride. Mary-Kate declines, puzzling Kevin. But Carrie finds out that Mary-Kate secretly visits the stables every day. Mary-Kate admits to Kevin that she doesn't want to remind him of his wife, and he assures her it's okay because it is a good memory. Also, Ashley gets into trouble when she secretly orders a handbag over the Internet using Kevin's credit card.

Première diffusion : 26 mars 1999

S1 E21 • The Goodbye Girl

Carrie has plans to go to South America for the summer. The twins trick Kevin and Carrie into having dinner together at a restaurant. At the airport, Kevin is disappointed to see Carrie is traveling to South America with a classmate. Carrie kisses Kevin, and boards the plane.

Première diffusion : 2 avril 1999

S1 E22 • Kevin Burke's Day Off

To be accepted to the cheerleading squad Ashley must perform a mean prank on Mary-Kate's new friend, Gabrielle. Ashley soon learns that nothing is worth doing something so mean to another person; Carrie convinces Kevin to take a day off work and the two go to a ballgame together.

Première diffusion : 9 juillet 1999