In the final and lesser-known installment of the Mark IV series, a fundamentalist Christian guerrilla named David is on the brink of execution by the forces of the Antichrist. However, he is rescued by Connie, an Antichrist agent who claims to be a double agent working for the Believers' Underground.
The Prodigal Planet
A lesser-known installment of the Mark IV series follows David, a fundamentalist Christian guerrilla, who is rescued by a representative of the Antichrist just before being executed by the forces of evil.