The story of Jagga Jasoos revolves around the high-profile case of Purulia Arms Drop, which took place in 1995 allegedly to overthrow the then Communist Government of West Bengal, India. Jagga, a curious and shy young boy in a quaint little town lives a happy life with his accident-prone adoptive father, Badal Bagchi. Jagga, being self-conscious of his stammer, doesn't speak much; until one day Bagchi teaches him to "speak" in song.