Based on a true story : the discovery of Lava's treasure, in 1985 near Ajaccio.

Fred, Achille, Max and Belette form a good-for-nothing gang of crooks. Dismally failing their last raid, they decide to get back in the game, kidnapping Sophie Marceau.

Captain Sara Bellaiche, from Toulouse Judiciary Police branch, is investigating a go-fast linked to the murder of two teenagers, an investigation led by Richard Cross, from the Paris Criminal Brigade. Forced to collaborate in order to find the murderer and stop the bloody go-fast, Sara and Richard are both thrown in a breathless race against the clock on the roads of Spain and France.

When his father passes away, a dentist in Paris inherits a plot and the will to build a house on it. The situation becomes tricky when he learns the plot is located in Corsica.