In 1978, Prof Rehmat Agha reveals to Adhir Zia's top-secret nuclear plans. In 2025, the NSA, Adhir Dayal, worries about Mariam, an undercover R&AW agent in Abbottabad.

• Spandan Mishra
• Faruk Kabir
• Sanjay Bhattacharya

• Kuldeep Sareen
• Naveen Kasturia
• Mouni Roy