Simon Peter (Howard Keel), a disciple of Jesus, attempts to live according to the guidance of the Messiah. Peter takes in a runaway fugitive he assumes to be a boy but who turns out to be a half-Arab princess named Fara (Susan Kohner). Fara wants to take revenge against her father, King Herod (Herbert Lom), for his humiliation of her mother. However, when she is joined by a suitor, Prince Voldi (John Saxon), they both feel the influence of Peter's teachings about the word of Christ.