Mahabharat Murders

Ruksana and Siddhartha interrogate murdered pornstar Devika's roommate and porn filmmaker, Vicky Patel. They discover two mysterious elements at the crime scene that lead them to a political bigwig.

As another identical murder scene crops up, it becomes clear that a serial killer is at large. Ruksana and Siddhartha meet Pabitra Chatterjee, who claims to not know of Debika but has connections with Prakash and Viki.

The class raises their own butterflies.

The police discover a shocking truth related to Prakash, Devika, Viki and Tanya. While Pabitra grows fond of Ruksana, Bipul meets a fateful end.

Professor Iain Stewart continues his epic exploration of how the planet has shaped human history. Iain explores man's relationship with fire. He begins by embarking on an extraordinary encounter with this terrifying force of nature - a walk right through the heart of a raging fire. Fire has long been our main source of energy and Iain shows how this meant that the planet played a crucial role in Britain's industrial revolution, whilst holding China's development back. Along the way he dives in a mysterious lake in Oregon, climbs a glacier of salt, crawls through an extraordinary cave in Iran and takes a therapeutic bath in crude oil.

The connection between Bipul and Devika comes to light. While Tanya blackmails Abirlal, Pabitra presents an insightful picture of the Mahabharata to Ruksana that helps her somewhat connect the dots.

While the police seem convinced that they have found the Mahabharat Murderer, Ruksana is not so sure. She brings Javed into custody and has a faceoff with him.

Ruksana discovers the link between Siddhartha and Laltu. She tracks Laltu to a hotel in the hills where something huge is at stake.

Ruksana explains to Pabitra how she figured out that Abirlal was not the Mahabharat Murderer. While Pabitra is stunned into silence, he is also impressed by Ruksana's intellect.

The world discovers the identity of the Mahabharat Murderer. Ruksana feels content having cracked the life-altering case.