Finally, the holidays are here! Vlad and his friends are so excited! Jérôme, Vlad’s father, is in charge. André, the grandfather of Jeanne and Basile, is also here to help. Six kids, two adults, an eight-hour train trip. Nothing could go wrong. But Jérôme and André miss the train… and watch it leave the station with the kids on board. It’s the beginning of a crazy race for the unlikely duo. While the unsupervised children go wild and have the time of their life, André and Jérôme go through various delays and adventures…

They are possessive, benevolent, clumsy, absent, omnipresent, overwhelmed, guilty, indulgent, loving, fragile, in full possession of their wits, or losing their heads. Alive or already a memory. They are mothers, and it’s their party.

Wael, a former street child, makes a living from small scams with his adoptive mother and partner-in-crime Monique. When this unconventional duo swindles the wrong guy, Victor, an old acquaintance of Monique now in charge of a support organization for troubled teens, they have no choice but to become his interim secretary and educator in order to redeem themselves.

How did Sarah and Victor get along for more than 45 years? Who was this enigmatic woman living in the shadow of her husband? Love, ambition, betrayals and secrets feed the story of this extraordinary couple, as they experience both the large and small moments of the last century's history.

Juliette is attending the baptism of Lucas, the son of her best friend Claire. But the young mother, weakened by her childbirth, shows disturbing signs of depression.

Nathan searches for true love. his friends give him a surprise that he would have never liked to receive. It is an artificial love.

Antoine, a bachelor party-goer, gets new roommates: Jeanne and her two children.

Because of his wavering health, Monsieur Henri can no longer live alone in his Paris appartment. Particularly grumpy, he ends up nonetheless accepting his son Paul's suggestion that he let one of his rooms out to a young female student. Far from falling for her charms, Henri uses her to orchestrate utter family chaos...