Johan and his father live at sea, and they have been since Johan was little. Johan likes the ship and wishes that he could also steer it someday. Then he would go to the Kingdom of the Feather King, as he believes this is where his mother is. One day when Johan’s father goes for provisions and Johan is left alone on the boat, he receives a mysterious call on the radio with information about the Feather King, and then Johan sets off on an adventure of his own.