Four friends: Kalim (Angad Bedi), Gautam (Neil Bhoopalam), Maya (Kangana Ranaut), and Abhay (Randeep Hooda), form a gang called the "Ungli" gang which fights against corruption prevailing in society. Their job is to target corrupt people and punish them in a unique manner. Due to increased popularity and their high-profile targets they are sought by Mumbai police department. Their case is the responsibility of ACP Ashok Kale (Sanjay Dutt) and inspector Nikhil Abhyankar (Emraan Hashmi). Nikhil disguises himself as a college student and joins the ungli gang with hidden motive of arresting them. But soon, his heart changes after learning the story of why the "Ungli" gang was formed. Meanwhile, Kale is compelled to seek help from the gang when Nikhil helps him expose the gang's greatest target, B.R. Dayal (Mahesh Manjrekar) and his son Anshuman. Kale instigates a sting operation against the Mumbai police and is successful in preventing his transfer. Kale thanks the "Ungli" gang and he assures them that the city won't need an "Ungli" gang as long as the administrations are running properly in accordance to public demands.