The Police Counter-Terrorism Unit (CTU) gathers intelligence to fight against terrorist attacks. Three beautiful female officers, Sam, Fa, and Bowie, who have different personalities, are outstanding members of this unit. Sam is a Chief Inspector in CTU. She is decisive and never mixes personal matters with work. Fa is good at martial arts and enthusiastic in her job. However, she can be very short-tempered. Bowie is a fresh graduate from the cadet school. She is very accurate at shooting, but she has no ambition at work. These three angels are friends and partners. In "Angels of Mission", they unite to fight terrorism.