Harry Tremaine, un jove de vint-i-un anys de vida neta, passa les seves hores d'oci perfeccionant un motor d'avió que ha inventat i que espera que finalment faci fortuna. En la seva ambició de deixar la seva empremta al món, es veu anima...
Twenty-one-year-old Harry Tremaine has perfected an airplane motor which he hopes will make his fortune a dream he shares with his fiancée, Alice. One night Harry receives word that his father, who has been leading a hermit's life out West...