Admiral McKee is retired, when following the events of 9/11 he receives a call from the White House informing him that his commander in chief requires him to serve his country once again. Shortly after this he is sworn into office as a senior member of the Office of Homeland Security under Tom Ridge. Once in office Admiral McKee faces the challenge of organizing this new office so as to prevent further terrorist attacks against the United States. With this in mind, Admiral McKee's wife recommends he speaks to his friend, NSA Agent Sol Binder.
| Actor | Role |
|---|---|
 Scott GlennJoe Johnson | Joe Johnson |
 Tom SkerrittAdmiral McKee | Admiral McKee |
 Grant ShowBradley Brand | Bradley Brand |
 Marisol NicholsAgent Jane Fulbar | Agent Jane Fulbar |
 Kal PennHarrison | Harrison |
 Ross GibbyAgent Frank Heinhoff | Agent Frank Heinhoff |
 Leland OrserSol Binder | Sol Binder |
 Stephi LineburgMelissa McKee | Melissa McKee |
 Beth BroderickElise McKee | Elise McKee |
 Nicholas GuilakSaif Khan | Saif Khan |
 Michael CudlitzAgent Tango 12 | Agent Tango 12 |
 Megan GallagherMargaret | Margaret |
| CChuma GaultAgent Frank Johnson | Agent Frank Johnson |
 Ben YoucefYusef Adel | Yusef Adel |
 Tracy ScogginsCatherine Adel | Catherine Adel |
 Nasser FarisDr. Fazul Adel | Dr. Fazul Adel |
 Ali AfsharAchmed | Achmed |
 Jason Butler HarnerPaul Franklin | Paul Franklin |
 Andrew RobinsonSenator | Senator |
 Charles BorlandSanders | Sanders |