When a series of deadly attacks carried out by a mysterious weapon strike remote parts of India, it takes the country to the edge of panic and chaos. To make matters worse, the government and its intelligence agencies fear that these attacks are building to something truly catastrophic - a final strike that would bring India to its knees and spell the end of its sovereignty. As the clock runs down, Adit Ohri, an elite operative of the 53 SAG, a strike force buried deep inside the nation's military infrastructure, is assigned to chase down a lead from his past and find those behind the attacks. But even as the needle of suspicion points towards India's traditional enemies, the mission leads Adit on a trail of smoke screens and deceit, until he finds the final shocking truth.