Rayane is a scared and clumsy young cop who is constantly mocked by other cops. The day his doctor wrongly tells him that he has only thirty days to live, he understands that this is his last chance to become a hero within his police station and impress his colleague Stéphanie. The eternal fearful man then turns into a real hothead who will take all the risks to catch a big drug lord...

The Grandmother of Ryane was kidnapped by a Mexican cartel and he has three days max to free her.