Even a show about two sisters having fun together can have its sad moments.
Ah non! Pas les vacances!
- Marine and Wendy being forced to spend the vacation with their grandparents and leave their friends behind, with all of them looking sad.
Doudou la Chance
- Carnage, Nath and DJ's dog, ends up ripping Marine's doll apart. The scene cuts to Marine looking at pictures of herself with her toy in a photo album with tears in her eyes.
Dans la Peau de Ma Sister
- Wendy promises to give her old phone to Marine, but forgets and gives it to Maxence instead, since he lost his old phone. Marine is heartbroken and angry, since she'd really been looking forward to getting that phone.
- Marine, angry at Wendy, ruins her sister's social life by sending embarrassing pictures of her to everyone she knows, gets her grounded, steals her room and steals her friends. This may not sound bad, but remember that Wendy is a 13-year-old girl, at the age when a person believes that social standing is everything.
- Worse still, Wendy believed that Maxence, her boyfriend who she loves very much, was the one who did all of this.
Quelle Soiree
- After spending a long time looking forward to Sammie's party, Wendy gets uninvited by Sammie when Sammie finds out that Wendy lied to Marine. To add insult to injury, Sammie invites Marine in Wendy's place.
- Marine reaches the party and is quite happy to be there, until she finds out that Sammie just invited her to be a waitress and hand out snacks to everyone.
- Wendy calling out Sammie on being a really bad friend to her.
Enfin Les Holidays!
- Sick of the girls' fighting, their parents decide to send Wendy on a linguistic exchange to New York while Marine stays home for 35 days. At first, they are both excited; Wendy will get the chance to visit New York, and Marine will be free from her sister. Within a few minutes, however, they realize that they will miss each other. The rest of the episode revolves around the two sisters' individual attempts to prevent Wendy from leaving.
- Marine sees Wendy packing up one of her video games for the trip, and realizes that it's a game they like to play with each other. Wendy explains that she's taking the game with her so that she can play it with her host family, who have three daughters. Marine sadly says to herself that Wendy has already "replaced" her with the other girls.
- One of Marine's attempts to prevent Wendy from leaving ends in her being caught by Wendy. Wendy, not knowing what Marine's true intentions are, believes that she is trying to ruin her holidays for no reason and nearly gives up on trying to stay home with her.
L'Ennemie Interieure
- Since Rachel is a Bitch in Sheep's Clothing, Marine believes that she is a nice person and tells Wendy to her face that Rachel is her "real sister". Keep in mind that Wendy sees Rachel as one of her worst rivals.
Home Sweet Home
- Wendy doesn't want to move away since she's lived in the house for her whole life and has really nice childhood memories from the house. Marine wants to move, but then Wendy reminds her of all the good times they had together in the house and cries at the prospect of leaving. Turns to Heartwarming when Marine, also with tears in her eyes, tells Wendy she doesn't want to move either.
Sisters Soldes
- Rachel threatens to rip up Marine's favorite stuffed toy if Marine doesn't hand the clothes over to her. Wendy, seeing how upset her little sister is, sadly tells Rachel she's won and gives them to her. Subverted since at the last moment, Marine comes up with a plan to get them back.
Doudou d'amoureux
- Marine is clearly saddened at the prospect of losing all her stuffed animals.
Les Sisters L'Ermite
- The Sisters' parents decide to put an end to their destructive behavior by threatening to send them to separate summer camps for the entirety of summer vacation. Wendy and Marine are both horrified by this idea and beg their parents not to separate them.
Wendyphobie
- Wendy lies to Marine that she is infected by contagious microbes so Marine will leave her alone. Marine believes this, and while Wendy is happy to be left alone, Marine is very upset because she can never hug or play with her sister again.
La Plus Pire Des Deux
- The Sisters' parents threaten to separate them again.
