1278, The end of the Southern Song Dynasty.
Chen Haisheng, a modern special soldier, was reborn after martyrdom for his country and became a low-level navy soldier on the Yashan front line. The historical script before him had already been written: five months later, the Yuan army attacked with fire, the iron ropes and boats turned into a sea of fire, and the corpses of 100,000 soldiers and civilians filled the sea.
He has no power to change the coach's decision and cannot reverse the fate of the country. The only thing you can do is to leave a way out for yourself and those around you before death comes.
An uninhabited desert island, two patrol boats, a few brothers who live and die together - these are all his assets. On the eve of Yashan, he rescued Su Xiuning, the daughter of a Quanzhou merchant, and Ayin, a girl whose identity is a mystery. That night when the flames were blazing into the sky, he led a dozen people to break out of the encirclement and rowed towards the depths of the South China Sea.
Starting from a team of more than a dozen people surviving on a desert island, they collect refugees, destroy pirates, and build a water village. He trained elite soldiers with modern military tactics and strategized with military strategies. Su Xiuning manages accounts and trade and builds an intelligence network with her talents as a merchant; Lu Wenlan, the daughter of a former pirate, returns with her men and leads the navy forward; Ayin's true identity gradually emerges as she grows day by day.
From the deadlock in Yashan to the sparks in the South China Sea, from recovering the Central Plains to seeking domination of the world - this is the story of an ordinary person rebuilding China on the ruins of civilization, and it is also an epic story of three completely different women walking side by side with him.