Kumar finds a black human skull with a puzzle etched on it, from his grandfather's room. Unable to make any sense out of it, he takes the skull to his trusted friend, Bimal, who is a professor of Anthropometry. Together, they decipher the puzzle, only to discover that it hints at an ancient Tibetan treasure hidden somewhere in the dense jungles of Neora Valley. Meanwhile, Bimal's brother, Hiranmay is Kidnapped by a shady secret society for some unknown reason, and taken to Lava. In order to satisfy their apetite for adventure, and to bring Hiranmay back safely, Bimal and Kumar sets out on an adventure of a lifetime. However, their quest gets much more complicated than they envisioned. Bimal and Kumar must rely on their wits and their daring heroics to outsmart the dangerous criminal Karali, survive the threatening terrain, and safeguard the legendary treasure from falling into wrong hands.