In Govind Nihalani's second attempt at commericial cinema, Dev, Amitabh Bachchan plays Joint Commissioner of Police Dev Pratap Singh. A proud and seasoned Police Officer Dev believes in supremacy of law.

Om Puri is Tejinder Khosla. Special Commissioner and friend of Dev, is the balancing force between the political interests of Chief Minister Bhandarker (Amrish Puri) and Dev's commitment to the law.

Fardeen Khan is Farhaan, an unemployed law graduate. His father Ali Saheb had bought him up on his ideas of patriotism and non-violence. But his father's violent death leaves him emotionally orphaned.

Probed by Dev unintentionally, an angry Farhaan chooses the path of violence. He joins forces with the corrupted and ambitious politician, Lati, to spark off a series of terrorist bombs in the city.

As a result thousands of innocent lives are lost and now Dev is confronted with the urgency to stop Farhaan from doing more damage.

Kareena Kapoor plays Aaliya, a full of life and a romantic girl who is the only ray of light and warmth in Farhaan's life. She gets caught in an extraordinary circumstance that transforms her life.

With Dev, Nihlani brings Amitabh Bachchan and Om Puri together for the first time on the Hindi screen. While Big B conquered the nation with his portrayal of a tough cop in Zanjeer, Puri stole the show with Nihlani's hard hitting cop saga Ardh Satya.