"Over the Garden Wall" is the story of two brothers, Wirt and Greg, who get lost in the Unknown, a strange forest that seems disconnected from the rest of the world. With the help of a wise old woodcutter and the moody thrush Beatrice, Wirt and Greg travel through this strange land, hoping to find their way home. The underlying theme of the journey is that both brothers look for direction in different ways: where Wirt gets lost in his own thoughts, Greg gets lost because of his constant wonder and pleasure in the world.