1836, Wisconsin. Catalina lives with her pa and brother in a ramshackle cabin on the edge of the wilderness. Harsh winters have brought the family to the brink of starvation, and Catalina has replaced her poet's soul with an unyielding determination to keep Pa and her brother alive.
When a sudden illness claims Pa, a strange man appears—a man covered in bark, leaves growing from his head, and sap dripping from his eyes. He scoops up her brother and disappears, leaving behind a bird with crimson wings. Catalina can’t let this man—if that’s what he is—have her brother. So, she grabs Pa’s knife and follows the bird.