The story of the TV series "Dar Khan" is about the events and mischief of three friends during the summer holidays. Javad's family is the tenant of Aziz Khanom's house, and Mohsen and his father live next door to them. They have a talking parrot named Fandoc. During one of the summer holidays, Ali's cousin Morteza comes to their house, and the mischief of these three playful children becomes the main focus of different stories.