Jiang Loach, a master of "salvaging boats" on the Yangtze River, was involved in a situation surrounding the Shuidongzi Tomb in the Black Beach of the Jialing River by the mysterious Li Bo in a ghost market in Chongqing. Using clues about a master who had been missing for five years as bait, the other party invited him to participate in the operation of "salvaging a sunken dragon pendant." He was also accompanied by Boss Wang, a financial backer who was eager to make a profit, Miss Lin who mastered hydrological technology, and Scar, who was in charge of security.
Jiang Loach knew that the Shuidongzi Tomb was dangerous, but he had to enter it to find the traces of his master. After sneaking into the ancient tomb at the bottom of the river, everyone encountered strange mechanisms such as the "Snake-Shaped Evil" and "Water Zombie King" one after another. When they approached the "Sinking Dragon Pendant", they discovered that the jade pendant was a fake - this was actually a game within a game set by Uncle Li. The purpose was to bring out the man behind the arrest of Master Jiang Loach and the real dragon pendant: Boss Wang's father.
As the king's father and his men surrounded them with guns, Miss Lin unexpectedly switched sides to help, and everyone had a thrilling breakout. And a bigger secret emerged: the real sunken water dragon pendant is the key to the "Dragon Palace" of the Yangtze River, and Master Jiang Loach is being imprisoned in this legendary underwater tomb. In order to save the master, regain the dragon pendant, and prevent the king's father from using the Dragon Palace treasures to do evil, Jiang Loach and his party embarked on a dangerous journey to find the "Dragon Palace". Thousand-year-old secrets in the depths of the Yangtze River, the strange mechanism of water burial magic, and the overt and covert struggles of multiple forces are all waiting for them to decipher one by one.
