A nuclear submarine accident sends Gao Bufan to the seventh year of the Sui Dynasty's Daye era, where he becomes the young master of the Bohai County Feiying Horse Farm. Thinking he'll live a life of leisure as a wealthy second-generation, Emperor Yang Guang's order to mobilize a million troops for an expedition to Goguryeo changes everything. A once prosperous and powerful empire begins its decline, and Gao Bufan's extraordinary life begins... In the midst of chaos, he will become extraordinary.