Four Hearts (1922)

Taking test samples of dye deposit from his western land (not yet paid for) to New York, Dick Reynolds meets his war buddy, Bob Berkley, who is in ill health, and Dick takes Bob and his sister, Marion, back home with him. The sample tester follows them and does all in his power to gain possession of Dick's land, and Dick is even jailed under charges of murder. Setting out to prove Dick's innocence, Marion, Bob, and Bob's sweetheart join in the search for the murderer; and Marion vamps the ranch foreman into a confession that implicates the chemist and another man. Freed, Dick gives the villain a beating and lands him in the sheriff's office.