The story of Jagga Jasoos revolves around the infamous high-profile case of Purulia Arms Drop, which took place in the year 1995 allegedly to overthrow the then Communist Government of West Bengal, India. Jagga (Ranbir Kapoor), a curious and shy young boy in a quaint little town lives a happy life with his accident-prone adoptive father, Bagchi (Saswata Chatterjee). Jagga, being self-conscious of his stammer, doesn’t speak much; until one day Bagchi teaches him to “speak” in song. Some time later, after admitting Jagga into a boarding school, Bagchi suddenly disappears.