Chen Nan, a retired elite operative from a modern special operations agency, unexpectedly acquires an ancestral portable space and is given ten days to prepare supplies. He settles his workplace and romantic disputes, takes out loans to raise funds, and frantically purchases cold weapons, food, and provisions at home and abroad. He even travels overseas to acquire large quantities of firearms. When the time limit expires, he travels to the chaotic Great Qian dynasty, only to find himself starting out as a prisoner in a death row camp.