Counter Measures(1985)

Monte Markham stars as the heroic pilot for Skycrane, a helicopter service whose missions are dangerous and exiting. A series of incidents such as dear poaching, bombings, and forest fires seem isolated to Gus (Markham), until they run into Bullwhip Johnson-a deadly adversary of Gus' from Vietnam. Johnson was known in Vietnam for running a drug and prostitution ring, and Gus is certain he is behind the recent acts of destruction. Gus jeopardizes his life and career in bringing his old enemy to justice at last!