To prove his standing in the police force, police officer Sartaj Singh makes a chase around Mumbai City on receiving an anonymous tip-off from a mysterious stranger.

News of Ganesh Gaitonde's death activates the political forces in Mumbai. The Internal tension in the police department results in Sartaj Singh's suspension, forcing him to begin his own investigation.

The woman found in the bunker leads Sartaj to Gaitonde's thug, Bunty. In a flashback, Gaitonde recalls stealing a lucky charm from rival Suleiman Isa.

TV starlet Nayanika visits Bunty with a hidden camera. In the mid-'80s, Gaitonde discovers a racket even more lucrative than drugs and guns: politics.

To save Nayanika, Sartaj intervenes during a RAW operation. In 1992, as political unrest increases, so does the bloodshed from Gaitonde and Isa's feud.

When Sartaj's constable, Katekar, is pressured to investigate the disappearance of a young man from a Muslim slum, disastrous consequences follow.

Hoping to tie up the many loose ends of their case, Sartaj and Anjali reunite to figure out how the enigmatic Trivedi is linked to Gaitonde's prophecy.

To save Mumbai from impending doom, Sartaj races against time to find out who Gaitonde's third father is and what's planned to happen on the 25th day.