 Two episodes of "The Master" pasted together. In the first half, Max Keller meets John Peter McAlister, an American who remained in Japan after the war and became a Ninja. He has returned to America to locate his newly-discovered daughter, and agrees to tutor Max in becoming a Ninja as well. During this, they help a father and daughter fend off an unscrupulous land developer who is trying to get hold of their airport. In the second half, Keller and McAlister aid a nightclub owner and his daughter in fending off members of the Asian Mafia, who are trying to take over their club. During all this, McAlister is pursued by an enemy Ninja, who wishes to kill him for breaking oath and leaving Japan.