This is a novel describing the heroic age and the spy sea legend. Shanghai, an international city during the Japanese occupation, was full of ups and downs, full of competition between various forces. The vast sea is a true portrayal of that special era. All for survival, all for victory. The turbulent special battlefield staged the magnificent epic of the national war of resistance, and also demonstrated the tireless struggle and pursuit of the future by the national elite. This book is dedicated to the true history and to the heroic era that continues for the nation.