during a certain encirclement and suppression operation, chen jiaju arrested the drug lord zhu tao, but chen jiaju was demoted for failing to bring him to justice due to the sudden disappearance of witness (zhu tao's secretary) shalena (qingxia lin). afterwards, zhu tao, who was full of hatred, designed to lure him to a villa where shalena was imprisoned, and sent his subordinates to kill a policeman to blame him, which made chen jiaju go to exile under the police's order. salina, who escaped by chance, understood the nature of zhu tao's use of any means. in order to protect herself, she took the risk of sneaking into zhu tao's office and stealing evidence, but was chased by her subordinates to the mall. chen jiaju arrived in time and started a fierce battle with zhu tao's subordinates.