His Last Dollar (1914)

Former newsboy and jockey Joe Braxton, becomes a millionaire rancher and decides to visit New York. He soon becomes the prey of swindler Tom Linson and socialite Viola Grayson. Linson defrauds Braxton's old employer, Colonel Downs, and attempts to corrupt Eleanor, the colonel's daughter. When Eleanor learns that Linson intends to destroy Joe on the stock exchange, she warns him, disregarding Linson's threat to ruin her reputation. Eleanor is too late, but Joe recovers his losses by riding Mongrel to victory in the Kentucky Futurity, after having stacked his last dollar on the horse's success.