 A European terrorist cell takes refuge in a spiritualist community in the U.S. that shuns all exposure to technology. Using the community as a front, they plan to destroy a new southwestern U.S. hydro-electric facility and for exposure, they invite a prominent TV journalist, Kelly Dayton (Heather McNair), to witness the event. When Kelly and her escort pilot, String, are captured by the terrorists, some quick thinking on the part of the ace pilot results in their escaping their captors, but String and Airwolf must stop the terrorists before they complete their plan of destruction and flood the valley settled by the spiritualists.