Léon a disparu

Two tastings of Roquefort, a cheese that sparkles on the tongue. One at Ella's, for the girls, and one at Sam's, for the boys. The little mice soon learn that it's more fun to enjoy it all together.

Julia is angry with Sam for stepping on her tail twice. Sam tries to reconcile with his friend as best as he can.

Julia has a cold and can't smell anything. She'll have to find a solution if she wants to take part in the annual cheese hunt with the other children in the residence.

Today, Julia feels out of place among the other children in the residence. What if her true place was on her island? Julia sets her mind on leaving...

To help Mr. Illico, the delivery man, who has twisted his leg, Sam and Julia offer to help deliver cheese stars ordered. But Julia, who has never tasted any, is too tempted to do so during the delivery.

Tonio can't stop pulling pranks. Sam and Julia can't take it anymore, until the day when they have to wonder whether this is just another prank, or whether Tonio is really in trouble.

In the courtyard, Sam and Julia find Tonio frozen like a statue. Usually a chatterbox, he doesn't say a word. Sam and Julia need to know what he's up to.

Sam and Julia want to play at the restaurant. But it's not easy to decide on the menu, the name of the establishment, and deal with the difficult first customers who turn out to be Ella and Tonio.

Puisque Sam n'a pas envie de jouer, Julia propose à la place de s'occuper des enfants de M. Goulu. Mais cette fille unique saura-t-elle gérer seule ces trois petits très agités?

In their secret hideout, Sam and Julia discover an old cuddly toy that probably belonged to a child. Who among the locals could it be?

Sam and Julia have received a large number of cheese stars from Mrs. Brioche. Tony and Ella think they should share with them. Mr. Grumpy decides to organize a game to bring peace between them.

Sam has a very bad night: he can only fall asleep by lying on the floor. In the early hours of the morning, Julia tries to help him find out what has given him such insomnia, so that it doesn't happen again.

Mamie Molette challenges Sam to tell a story at her next party. Julia will help him overcome his fear.

Julia and Sam organize a 'round of toys': each child has to offer one of his or her own, which is then given at random to another child. But the success of these exchanges is marred by disappointment.

A former resident returns to visit the apartment she occupied when she was a child: Julia's apartment. She had forgotten a small music box. Julia has found the toy, but is reluctant to give it back.