When archaeologist Shirley Yang learns of her father's disappearance, she returns to China and enlists the help of tomb raiders to track him down.

A group of tomb raiders team up together to explore an ancient tomb of Yuan dynasty which is located in the Ping Shan mountain in West Hunan province.

Hu Bayi and Fatty Wang had planned to go abroad with Shirley Yang. However, they were entrusted by Professor Chen to travel to the Coral Spiral with Mr. Ming to search for the Qin Emperor's Bone Mirror. They befriended Ruan Hei, Gu Cai, and Duo Ling on Coral Temple Island. Together, they set sail. One night, they were sucked into the underwater cave of Guixu.

该剧改编自天下霸唱小说《河神：鬼水怪谈》，讲述了恶水之源爆炸因果未明，津门事变，悬案再起，郭得友、丁卯、顾影、肖兰兰津门天团再次聚首，探寻“九牛二虎一鸡”连环大案背后真相的故事。