The entire Shen family is exiled to Nuhai Island, a treacherous island where survival is nearly impossible. Shen Tuo, who grew up by the sea and is an experienced ocean-going captain, uses his exceptional sailing skills to turn this deadly place into his own domain. He pries oysters from the reefs to overcome the food shortage, repairs ships to reopen trade routes, wipes out invading pirates with a devastating fire attack, and builds a harbor that attracts merchant vessels. From the descendant of a disgraced official to the officially appointed Lord of Nuhai Harbor, he makes the deserted island his foundation and guards the maritime gateway to the southern frontier amid raging storms and towering waves.