Synopsis by Hans J. Wollstein
A breathless outdoors melodrama about an American who becomes a revolutionary leader battling evil government spies in Argentina, Captain Alvarez was probably the best of about 15 rather mediocre films to feature or star future director and celebrated murder victim William Desmond Taylor (née William Cunningham Deane-Tanner). Portraying the title role, Taylor took second billing to Edith Storey in this adventure yarn based on a stage play, and in surviving stills appears stern-looking and slightly melodramatic in the then accepted fashion of William S. Hart. Denis Deane-Tanner, William's rather mysterious younger brother, is thought to have played the small role of a blacksmith in this film. William Desmond Taylor later emerged as a competent and very busy director but his long and somewhat distinguished film career has taken a decided back seat to his sensational 1922 murder, which remains unsolved.