After making a discovery in Gaitonde's bunker, Sartaj joins a mission to foil a deadly conspiracy; Gaitonde resurfaces in a new location in 1994.
With the terrorist-cell investigation underway, Sartaj visits Guruji's ashram; in the late 1990s, Gaitonde is urged to seek a spiritual anchor.
Sartaj traces how Shahid Khan's nuclear consignment was delivered to India; Gaitonde takes bold action to maintain his notoriety in the early 2000s.
Sartaj's team tries to reach Shahid Khan through an internet chat room; in 2003, Gaitonde's growing disenchantment with his life brings him closer to Guruji.
As Sartaj's team baits a trap for Shahid Khan, Malid suspects a department member; immersed in ashram life, Gaitonde learns about Guruji's lethal plans.
Batya lets Sartaj in on several secrets, leaving him conflicted and reeling; Gaitonde returns to Mumbai to set Guruji's destructive plan into motion.
After committing a drastic act, Gaitonde cannot silence Guruji's voice in his mind; Parulkar reaches a shocking realization; Sartaj makes a breakthrough.
Unsettling truths, unforeseen connections and complex betrayals emerge for Sartaj, Gaitonde and Shahid Khan as doomsday descends on Mumbai.