Wendy and Marine are two sisters who get along like a house on fire and share all their little secrets. But they also like to tease one another or use their boundless energy to get up to mischief.

This is the story of a small Marseilles football club on the verge of extinction that ends up in an amateur tournament organised during the World Cup (inevitably referred to as "La Mondialette"). It's their opportunity to save the club. The team, made up of temperamental hotheads, will have to dodge all kinds of low blows.

The series follows the adventures of lighthearted Jean-Paul Moulin, a police Commissaire, and his team as they solve crimes.