Just as they are about to radio for extraction, a shot rings out. , the local police officer who has been secretly feeding information to the terrorists, steps out of the shadows. He knows Aravind’s true identity. A tense standoff ensues; a single bullet tears through the ceiling, and the warehouse erupts in flames.

They board a midnight train, their uniforms swapped for civilian attire—Aravind as a photojournalist with a battered Nikon, Mahadevan as a tech‑savvy reporter with a laptop forever flashing “loading…” They disembark at a chaotic railway station, the cacophony of vendors and the scent of fried dosa masking the tension beneath.

At a modest tea stall, they meet , a fiery journalist for a local daily, who unknowingly becomes their link to the underworld. She tells them about a series of suspicious shipments arriving at the Muttukadu harbour—containers marked with an obscure symbol: a black swan .

Aravind, now a decorated hero, returns to his quiet life, but the experience has changed him. He visits his father’s grave, laying a single marigold, whispering, “The blood that ran through my veins today was not just my own—it belonged to every Indian who believes in peace.”

The two officers race against time, fighting their way back to the *INS Shakti as the Vijay starts to flood. Water rushes in, the lights flicker, and the ocean’s roar becomes a deafening scream. With a final surge of strength, Aravind and Mahadevan breach the hatch, pulling themselves into the safety of their own vessel. Back on Indian soil, the stolen data is handed over to Admiral Raghavan, who initiates a court‑martial against the corrupt officers. The nation learns that the real enemy sometimes wears the same uniform as its protectors.

Aravind is ordered to lead a . He and Mahadevan board the navy’s own stealth submarine, the *INS Shakti , a vessel equipped with sonar that can “listen” to the ocean’s secrets. The two men, now underwater, are surrounded by the black silence of the deep, broken only by the occasional crackle of the radio.