The plot follows the novel more closely than does any other Tarzan movie. John and Alice Clayton take ship for Africa. Mutineers maroon them. After his parents die the newborn Tarzan is taken by a great Ape, Kala. Later the boy finds his father's knife and uses it to become King of Apes. Binns, the sailor who saved the Claytons and who has been held by Arab slavers for ten years, finds the young Tarzan and then heads for England to notify his kin. A scientist arrives to check out Binns' story. Tarzan, now a man, kills the native who killed Kala; when their chief is killed the black villagers appease Tarzan with gifts and prayers. The scientist's daughter Jane is carried off by a native, rescued by Tarzan (who has burnt the native village), aggressively loved by him ("Tarzan is a man, and men do not force the love of women"), and at last accepts him with open arms.

Allegorical film about peace. A king starts a war, many of the women are against it, people are pressed into service. A count has constructed a submarine and gets the order to sink an ocean liner, that is also carrying - supposedly - ammunition for the enemy. The count refuses to fire the torpedos, and sinks the submarine. He survives, but in a limbo between death and life where he meets Jesus, who takes him over to preach peace. Naturally the king arrests him and sentences him to death for treason, but then Jesus shows him the real face of war.