The year is 1974, and Arun Sablok, an Indian intelligence analyst, has discovered a Pakistani spy in Europe who is passing nuclear weapons technology to Pakistan.

But weak evidence, inexperience, and Sablok’s reputation for alcoholism conspire against him, and his section chief refuses to allow an operation.

After two years of joining the intelligence service, Sablok has finally found a sense of purpose, and he won’t give up without a fight. He seeks the only other person he trusts in the intelligence service, a washed-up case officer who was an outstanding field agent once.

But can the two of them rein the Pakistani spy before he steals all the technology Pakistan needs to build a nuclear bomb?