Xu Xu, an 18th-tier actor, strayed into the strange Republic of China crew in Qingxi Mountain for 500 yuan in labor fees. The "Don't trust anyone" note in the dressing room and the mysterious fall of an employee from the props team made him deeply confused. When he was brutally killed and fell off a cliff, he accidentally activated his ability to retrace time and returned to seven days ago. With the memories of his past life, he deals with the ruthless producer, the mysterious warlord marshal and the crew with murderous intentions, tracing the shady story of the arms deal and rescuing innocent people. In the misty mountains, every step is on the edge of a knife, and the strange reminder of "seven days limit" indicates that a more dangerous chess game is unfolding.