General Wolfe, appointed commander of the expedition against Quebec, comes to bid his mother goodbye. Before sailing, the general calls upon his sweetheart, Katherine Lowther. She presents him with a locket containing a miniature of herself. Wolfe places the jewel on a chain about his neck. Mignon Mars and her brother, Hubert, of a Canadian family, are captured by a body of men attached to the Royal Americans. Lieutenant Arleigh, the officer in charge, secures their release. Mignon loses her heart to the young officer. General Montcalm arrives at Quebec and takes command of the French forces.
