Shubh returns for revenge and this season he takes the challenge to a whole new level. With the heroes fallen apart, will a desolate Dhananjay Rajpoot and a torn Nikhil Nair be able to stop him?
DJ is haunted by the past & has taken refuge, hoping to outrun his demons. Nikhil is broken & blames himself for his daughter's death. The CBI team races against time as Shubh has planned a new attack. He warns, a new world order is coming.
CBI team investigates how Shubh killed those 3 people. DJ will work outside the system to catch Shubh and will go into his past, to Varanasi. Nikhil is determined to uncover the clues leading to Shubh & finds another set of coordinates.
An ATF veteran, Paul takes over the case from CBI. Nikhil and him, have conflicts but will work together for the common cause. Naina comes across a mysterious portal on the dark web and DJ meets someone from Shubh's past.
Kesar is abducted by DJ. ATF has lost a key member & Nikhil accuses Rasul. DJ propels to dig into Rasul's background. Despite their ideological differences, DJ joins hands with Nikhil, but Rasul has already put his evil plan in motion.
The CBI team is trying to rescue Nusrat against all odds. Nikhil gets a clue, but before they can discover Shubh's plans, Rasul threatens them for Nusrat's life. They don't know yet that Rasul is leading them into a devious trap.
ATF has to stop Shubh's next attack. While DJ goes behind Shubh's roots, the ATF team manages to get clues from Nusrat's kidnapper. They all eventually realize what Shubh's plan & attack is & how he carefully orchestrated it.
The CBI members are at their lowest ebb and as they take in the ramifications, there is a hostage situation at a restaurant. While the team races against time to stop Shubh, in a stunning surprise DJ has one last trick up his sleeve.
In the Titanic battle between Good and Evil, will a seemingly unconquerable Shubh fulfil his destiny and cause a complete collapse of society, or will the forces of good, against all odds, manage to prevail?