Paul Vidal is a country doctor in a small town. A husband and father, he seems to have all he needs to be happy. Yet he suffers a serious nervous breakdown, making him unable to practise.

Twig, Cap and Rusty live however they can in the Bois de Vincennes, east of Paris. This may completely change the day they learn they are the national lottery winner – though it is less than expected! Yet, they still need to collect the money and share it in equal parts. The hardest part of all will be to resume a “normal” life, filled with surprises and contradictions.

Newly promoted Lieutenant Valentine Ventura finds herself working with famous Captain Antoine Thomas who just came back from his medical leave after the tragedy he lived a few months ago : victim of a car crash that killed both his wife and the child she was bearing, Antoine Thomas spent several months in the hospital, and is now back in a wheelchair after losing function of his legs. Working on the case of a murdered young journalist, the two detectives succeed in arresting her colleague, whose guilt is undeniable. Multiple elements even indicate that they just caught a serial killer; although he admits he killed the young journalist, their suspect didn't commit these other murders, and seems to be the victim of a manipulation.

In a Parisian parking lot Sonia finds herself trapped in her car with her son and the daughter of her boyfriend Fred, who has been left outside, powerless to deal with the situation: an anti-tank mine has been set under the car. Sonia is a bomb-disposal expert, who works for a NGO with Fred. She just got back from a mission in Ukraine and, while she's used to face dangerous situations, with the children's lives on the line the stakes have never been higher. Along with colleagues Igor and Camille, who came to the rescue, Sonia and Fred have 30 minutes to defuse the bomb and work out who could be the mastermind behind this. Will they stand united until the end or will the family implode under pressure?

Young girls practicing synchronized swimming are getting ready in the locker room. Very quickly, a conflict arises around the body of one of them, Océane, who is the only one not to be shaved.