Kate, whose father, a university graduate, died when she was very young, is adopted by her tenement neighbor, Mrs. McMahon, after her mother, a woman of refinement, dies. At ten, the ill-nourished girl, who has grown up watching her drunken foster father fight with her overworked foster mother, goes to work in a factory after Mr. McMahon loses his job. During the next eight years, Kate's stepbrother, Big Bill McMahon, becomes her friend, sweetheart and protector.
Ella Hall
as Kate
Robert Z. Leonard
as Big Bill McMahon (as Robert Leonard)
Mae Talbot
as Big Bill's mother
Mark Fenton
as Big Bill's father (as Marc Fenton)
Allan Forrest
as Guy Melton
Anna Lehr
as Marion Melton (as Anne Lehr)
Helen Wright
as Mrs. Melton