Sanshiro, a strong stubborn youth, comes to the city to apprentice at a jujitsu school. His first night, he sees Yano in action, a master of judo, a more spiritual art, and he begs to be Yano's student. As the youth learns technique, he must also learn "satori," the calm acceptance of Nature's law. If he can balance strength and control, then judo may become the training regimen for the city's police, Sanshiro can gain respect from an old teacher in a jujitsu school, and he can win the hand of Sayo, that teacher's daughter, who is also sought by jujitsu's finest master, the implacable Higaki, who vows to kill Sanshiro in a midnight fight on a windswept mountainside.—