A spy/thriller series about a government agent who uncovers an assassination plot against a presidential candidate -- and has 24 hours to stop the murder. Each episode unfolds in real time, focusing on one hour. Jack Bauer and his elite team of CIA agents uncover the plot to assassinate Presidential nominee David Palmer. With only 24 hours to identify the killer and save Palmer's life, Jack must also deal with his strained marriage to Teri and the sudden disappearance of his troubled teenage daughter Kimberly.