1953: The Shadow of TunguskaKorea burns, and the Cold War is about to ignite. Captain Jack Kostanov, ace pilot of the U.S. Marines, is drawn into a mission erased from every report - a secret that could decide the fate of the world.From the decks of aircraft carriers in the Sea of Japan, across the frozen Siberian taiga, to hidden Soviet facilities deep in the Tunguska region, a race unfolds against time, technology, and the shadow of a weapon beyond imagination.In a world where the line between ally and enemy blurs, Kostanov must face the ultimate question: how much is he willing to sacrifice to see the mission succeed?