It is 1968. In Asia, the war in Vietnam rages unabated. In the USA, cities burn amid protests and assassinations. Meanwhile, from the Caribbean to Bolivia, men of the 7th Special Forces wage a secret shadow-war against forces committed to the destruction of the American way of life. Stu Carter, college drop-out and freshly minted Green Beret assigned to team A-45, must learn to adapt or die in the dim jungle light, while coming to terms with concepts of honor, loyalty, and integrity. The Green Light shines brightly on a largely unacknowledged chapter of the American story.