“Yarahmadi Motlagh” is a young detective from the suburban city of Bandar Lengeh. While he was transporting his swan bird to the Environmental Protection Organization, he gets ambushed, and his bird is stolen and taken across the water border to the Sheykh Neshin tribe. The detective decides to take care of this matter himself. He travels to Kish Island to find the trail of his bird and the thieves with the help of his friend “Nakhoda Marzouq,” who had been imprisoned together years ago and later became friends.