Geneticist David Sandstrom is the chief scientist at the prestigious North American Biotechnology Advisory Commission. The virology/micro-biology NorBAC laboratory is a joint enterprise between the USA, Canada and Mexico that investigates problems of a scientific nature, such as bio-terrorism, mysterious disease and radical environmental changes.

Caroline suggests that Hira has possible terrorist links and shuts her out of NorBAC. David must bring Hira back but he is confronted with a rally outside NorBAC, led by a fanatical reverend who claims that Christ can be cloned from a blood smear found on a nail from the True Cross at the site of the Crucifixion.