The U.S. space shuttle is being sabotaged. To protect a diabolical new Soviet weapon! Nick Carter "Killmaster N3" is taking a break from the spy game with a luscious woman under the warm Florida sun. But before long that very sun takes on a sinister quality, Since the Russians have found a way to harness and direct its terrible power. First Chinese military posts are struck. Then vital U.S. communication centers. Finally, when a NASA project collapses, Nick begins his desperate mission, taking him into the heart of Soviet Russia, and inevitably, into the arms of the beautiful Martina Dubronik, a U.S. deep cover agent. A bizarre battle with Cossacks and a confrontation in earth's near orbit hurtle Nick Carter and the fate of U.S. security, into a thrilling climax.