Na-Insaafi is an action crime drama. The movie revolves around the widowed Judge Kedarnath Sinha’s (Om Shivpuri) family. He lives with his two sons - CBI Inspector Vijay (Shatrughan Sinha) and college-going Sonu (Chunky Pandey). Vijay is often haunted by the unclear memories from his past. Kedarnath reveals that a tragedy occured on Vijay’s fifth birthday, which affected everyone’s life. Sonu sets out to take revenge from the one who is responsible for destroying the lives of people in his family. Will he succeed in his mission?