Live Wires (1921)

Bob Harding, a student in love with Rena Austin, his hometown sweetheart, is preparing to play an important football match when he receives word from home that his father has died. There he learns that his father has left nothing for college funds, and while he is trying to get a job his mother is tricked into signing an option on her property for a paltry sum. In an effort to stall off the crooks, Bob gets into a fight when they suggest he "throw" the game on which they have bet money. A tramp, who turns out to be Rena's long-lost father, steals the option from the crooks, and Rena obtains evidence that clears her father of a scheme in which he had innocently been involved. Freed by the police, Bob boards the train, is lifted from the roof of the speeding train by an airplane, and arrives at the field in time to save his team from defeat.