Synopsis: With the escalation of terrorism on an international scale in the late 60's, early 70's, Government Agencies such as the Defense Nuclear Agency, entrusted with operational security of nuclear facilities, have become increasingly concerned about small groups of terrorists infiltrating its facilities.
Produced in the early 1970's this title examines three possible types of infiltration from unarmed intruders to armed terrorists with sniper and heavy machine gun support. Each scenario is stopped well short of its goal by security personnel with the last scenario needing a helicopter and armored personnel carrier.