Shimla is facing a series of bank robberies and the police are clueless. Chahal and Pahal however, have a different issue. Her class topper has lost his pencil which he claims is stolen because of its magical properties. It has the power to help anyone top any exam. Now it’s up to the detective duo of Chahal Pahal and their sidekick to find the thief and help restore the topper to his position. As they search for the thief among their classmates, nothing can prepare Chahal Pahal for what’s in store for them. Is the magical pencil for real? How will Chahal Pahal find the thief? Where will this hunt take them as they unveil the Mystery of the Magical pencil???