"Shool' is the story of the courage of an upright police officer who strikes out to crash the terror of the underworld. Inspector Samar Pratap Singh (Manoj Bajpai) is posted to Motihari, a small town in Bihar to clamp down upon the atrocities unleashed by Bacchu Yadav (Sayaji Shinde), a local politician who believes himself to be a self-styled anarchist and above law. Samar, during the course of his duty finds out that Yadav is too tough to handle following the release of hid henchmen all the time. How Samar Pratap Singh brings the culprits to book forms the core of the film.