Critical Mass explores the conflict between the human body and our modern first-world habitats. We examine not only the unseen dangers of our comfortable lifestyles but how to avoid becoming another casualty of diseases of affluence.

Jeffers works security at a nuclear power plant. The plant is being decommissioned, and a politician is touring the plant and videotaping his comments regarding the closing. A terrorist group led by Samson gets inside the gates, with their ultimate goal the detonation of a nuclear bomb inside the plant. After local policemen and the other plant workers are killed, Jeffers and Janine alone must confront and halt Samson and his terrorist squad. Written by Ken Miller