In the last years of Hongwu in the Ming Dynasty, the sea was as forbidden as iron. Chen Yuan, a young man from the water transport terminal, accidentally got involved in the secrets of the "shipping faction" of the previous dynasty due to the tragedy of his best friend being drafted to transport grain. With a incomplete copy of "Cangming Navigation Jue", he narrowly escaped death in the pursuit of Jin Yiwei and the siege of the Maritime Ban Sect, and gradually uncovered the astonishing truth about his family and the shipping of the Ming Dynasty.
From a humble laborer to a maritime hero, from a prisoner to the helm of the Imperial Navy, Chen Yuan was forced to make a cruel choice between friendship, family feud and national policy. When he finally leads the mighty fleet through the waves, what awaits him is the route to the new world, or the abyss where his ideals and close friends are buried?
