Li Zhuo is the youngest chief surgeon at the General Hospital of the Military Region. He is cold-faced and taciturn, and never hesitates to use his knife. On a rainy night, he pulled out from the rubble Qi Jue, a military commander who was covered in shrapnel and was seriously injured and endangered. The operation lasted seven hours and he used three suture needles, half a bottle of saline and a broken electrode wire to revive him. The first thing Qi Jue said when he woke up was not thanks, but: "You save me, and I'll let you live." From then on, Li Zhuo was involved in the military and political undercurrents, and under Qi Jue's scars, there was a truth that even the Military Commission buried. When the gun was pointed at the operating table, and when he was ordered to wipe out the evidence with his own hands, Li Zhuo held the knife and asked himself for the first time: Is he saving a person or a chess piece?