In Port City, North Carolina, a vagrant discovers plans for an invasion. His attempts to warn law enforcement are ignored but when the Sheriff notices odd interactions with other townsfolk, he begins to look into the claim of a sleeper cell living amongst the locals.

Captain Jagadish, an intelligence officer in the Indian Army, returns to Mumbai for a vacation but soon finds himself in a deadly mission. After witnessing a bus bombing, he uncovers a network of sleeper cells planning multiple attacks across the city. With no official backing, he embarks on a personal mission with his trusted comrades to eliminate the mastermind, ensuring the sleeper cells remain leaderless and trapped in silence, waiting for orders that will never come. Ready to sacrifice his own life, he sets out on his final mission—but does he succeed, and at what cost?

Anwar Ahmed Zayed is a Pakistani sleeper cell activist, who tried to inflict terror using a series of bombings in five different places of Kolkata. However, his plans are about to be derailed as Imtiyaz Kabir, the SP of Anti Terrorist Squad, headed by ADG Vikram Dwivedi and Monali Bhattacharyya, a cryptologist from IB team join hands to decipher the code language used by IM in email communications. Imtiyaz and his team, with the supervision of Vikram Dwivedi, raids the hide-outs of the terrorists and nab all the seven terrorists involved in this attack including Zayed. While behind the bars, Zayed apparently transforms himself into a pious Muslim. He wants to live the life of a common man and writes to the Chief Minister to review his death sentence and give him another chance to lead a normal life. Zayed gets released from jail after four years of his arrest and goes back to his village to reunite with his wife Sabina and daughter Razia.

A tabloid writer has evidence of the assassination of a US Senator. A visit from a scrupulous FBI agent suggests he may know more than he's admitting about the assassination and the key may reside in the recesses of the writer's dark past.