The drama revolves around the incidents that occur among the police force and the joy, sorrow, and pain that police officers experience as they try to protect justice. Lee Kwang Soo plays Yeom Sang Soo, a character determined to live in the mainstream of society by becoming a public official. However, he becomes an icon of misfortune with every case that he handles and runs into conflict with a superior. Jung Yoo Mi’s character Han Jung Oh is Yeom Sang Soo’s co-worker and a female officer that works to fight male chauvinism. The two characters with high fighting spirit join efforts to solve incidents.