Kathryn grew up in a well-to-do home in Toronto. But after her father's death she has to move to Alberta - to live with an aunt she's never met. She soon discovers that Aunt Belle lives in a shack in the small community of River Falls. Her father never told her about the hard struggles of her Métis relations. She begins to learn about them from Aunt Belle. A mysterious Highwayman appears. The local officials want to get rid of him, but he seems to be looking after the people of River Falls - like Robin Hood. When someone tries to frame the Highwayman for a crime, Aunt Belle gets involved.