Mrs. H & Pintoo are held hostage at Khasha Blanca forcing Shekhar to confront his past where he had uncovered a deadly gas weapon linked to M, a criminal mastermind. Now they must find the vial or his friends lose their lives.

• Arthur Conan Doyle
• Srijit Mukherji
• Aniruddha Guha

• Kundan Roy
• Kavita Vaid
• Kay Kay Menon