The story tells the life histories about Saints
Peter and
Paul of Tarsus after the
crucifixion of Jesus, and their individual fates in old
Rome in the time of the
persecution of Christians. Events in the New Testament
Book of Acts by Luke and in the
Ecclesiastical History of Eusebius are dramatized and interwoven with the contrasting histories of political intrigues in the public and private lives of the Caesars from
Tiberius through
Nero related in
The Twelve Caesars by
Suetonius, together with the fictional drama of the lives of two Jews and two Romans: Caleb the Zealot and his sister Sarah, and Julius Valerius the Imperial Guard and Corinna the patrician woman who has chosen to be a
gladiator. After Caleb is condemned to be crucified, his mother is murdered when Roman soldiers carry out Pilate's orders to have Caleb's sisters Sarah and Ruth sent to
Sejanus in Rome as "gifts". Caleb is rescued on the way to execution, and goes to Rome to find them. He enlists as a gladiator, takes the name "Metellus", meets and falls in love with Corinna, and is trained as a
retiarius. Meanwhile, Ruth, grieving, provokes a Roman soldier to kill her during the voyage to Rome, and Sarah is made a slave in Sejanus' household, until he is executed for treason, and she then becomes part of
Caligula's household. Tiberius, after ordering the execution of Sejanus, was himself secretly assassinated by Caligula, who has now become Caesar. Julius Valerius, having met Sarah on Sejanus' estate, has fallen in love with her, and when she is put on the slave block to be sold as part of an imperial fund-raising effort he, with the financial help of his parents and additional funds provided by Aquilla and Priscilla, Jewish tent-makers, buys her for himself and frees her to become his wife. Caleb is informed that Sarah is alive, but he is scandalized that she has married a Roman soldier. He meets Valerius and is soon confronted with the fact that he himself loves a Roman woman, now disinherited and disowned by her father. Valerius and Caleb participate in the plot to assassinate Caligula, and the stammering
Claudius (found hiding) is hailed as the new Caesar. He expels the Jews from Rome, but Sarah is exempt as the wife of a Roman. Caleb/Metellus and Corinna also remain. Aquilla and Priscilla return to Jerusalem. Soon afterward Claudius is poisoned by
Agrippina after having designated her son Nero as successor over his own son
Britannicus, and she herself is then killed by order of Nero. Caleb later marries Corinna near her parents' estate under the open sky with "only God as the witnessing Rabbi". The missionary Paul is arrested and Julius Valerius is tasked with escorting the prisoner to Rome; then 2 years later he is set free. Valerius and Sarah convert to Christ and soon become parents of a daughter they name Ruth. The burning of Rome is used by Nero at the urging of
Tigellinus as a pretext to deflect the blame from himself to the Christians. The dramatization of the persecution that follows includes the inverted crucifixion of Peter, the beheading of Paul, and the preparation of Christian children for the arena being dressed in fresh lambskins and led out to be torn to pieces by Roman war dogs. Caleb and Corinna armed with sword, shield, net and trident rush into the arena to fight the dogs to save the children, several of them being killed before the dogs are slain. The crowd is thrilled with the dramatic rescue. During public announcements of more entertainment to come, Valerius enters and grieves over the death of his daughter, only to find afterward that she is still alive and was never in the arena. In grief and rage over Rome's corruption and cruelty, he renounces his military career and his Roman citizenship, and he and Sarah leave Rome.
Linus, long-time family friend of Corinna's, having succeeded Peter, and knowing that Corinna cannot have a child of her own, entrusts a child orphaned by Nero's persecution to her and Caleb, charging them to raise the boy in the faith of his parents. They thank him and depart by ship for Jerusalem. They name him "Joshua". ==Cast==