At the Paris police headquarters, things are being cleaned up. This marks the beginning of a new brigade aimed at neutralizing all the slackers, thugs, and alcoholics. The leadership is taken on by Anne Capestan, a once-promising police officer who was suspended from duty due to a fatal mistake. However, Capestan has no intention of being sidelined! In a shabby office, she and her team of misfits set out to solve old cases that reveal the depths of the new management.