Ouyang Feng is a heartbroken and cynical man who spends his days in the desert, connecting expert swordsmen with those seeking revenge and willing to pay for it. Throughout five seasons in exile, Ouyang spins tales of his clients' unrequited loves and unusual acts of bravery.

In a present-day Spain, divided and on the brink of political chaos, inquisitive millennial investigative reporter Antonia stumbles on a decades-old conspiracy: the existence of a cryogenically frozen super-agent, García, created in a laboratory in the 1950s by General Franco’s fascist secret services. The old-world collides with the new as García and Antonia must learn to work together as they are drawn deeper and deeper into a political conspiracy that threatens to overthrow democracy and plunge Spain back into brutal dictatorship.