Goopy Gyne and Bagha Byne rule the kingdom of Shundi and get bored of enjoying the royal luxuries.

In the courtroom, they meet Brahmananda Acharya, who invites Goopy and Bagha to come to Anandagarh fort.

When they go to his place, he offers them a job to steal three valuable stones, making use of their miraculous powers gifted by Bhuter Raja (King of Ghosts).

Brahmananda Acharya had gained immense powers, which is proved when he is not rendered motionless by Goopy's song.

To prevent his death, Brahmananda Acharya has all the 12-year-old boys in Anandapur, named Bikram, kidnapped by his soldiers.

Ray said to The Times of India about the plot of the fourth film: "Making a Goopy Bagha movie without Tapen and Rabi is unthinkable.