A drug squad attempts to take down a criminal organization and they must go undercover to do so, so they begin working at a chicken restaurant, that becomes famous for its delicious chicken. Due to the unexpected popularity, the detectives find themselves in a situation they never expected.

Ryu Seung-ryongas Squad Chief Go
Lee Haneeas Detective Jang
Jin Sun-kyuas Detective Ma
Lee Dong-hwias Detective Young-ho
Gong Myoungas Detective Jae-hoon
Shin Ha-kyunas Lee Moo-bae
Oh Jung-seas Ted Chang
Kim Eui-sungas Police Superintendent
Song Young-gyuas Detective Squad Chief Choi
Heo Joon-seokas General Manager Jung