Back in India, KM is pulled back into the field by her mentor, Ravi Mohan. Intelligence suggests that a mole within R&AW has been selling classified information to the Americans, leading to Loia’s death. The prime suspect is a seemingly ordinary man: Ravi Mohan’s subordinate, a code-breaker named Mirza. However, the web of deceit is tangled. The investigation leads KM to another suspect, a quiet and diligent R&AW officer named Ravi Mohan (played by Ali Fazal), who lives a modest life with his wife and son.