The series is about a specific job of the American intelligence agency. Namely it shows us the best qualified specialists working in a team under the supervision of a female deputy director of the organization. Her name is Patricia Campbell. She is a rather determined woman and is responsible for the lives of innocent people, therefore she struggles with the terrorists using highly sophisticated methods such as advanced surveillance technologies and other effective spy gadgets. In other words, together they do their utmost to complete the mission whatever difficult and intricate it could be.