As part of a series for the Centers for Disease Control and Prevention, this video instructs emergency responders, rescue workers, and volunteers in handling radiological incidents. For this video, we filmed an emergency response training exercise with the Gwinnett County Health Department and the Radiation Studies Branch of the CDC. Depicted here is a community reception center following the detonation of a dirty bomb. The two-day shoot involved 25 crew members, 7 actors, 50 emergency responders, and 70 extras.