Elite counterterrorism agent Jack Bauer (Kiefer Sutherland, in an Emmy-winning role) crams more into a 24-hour period than most people can pack into a lifetime: dodging bullets, offing terrorists and saving the country. In the fifth season of this Best Drama Emmy winner, Bauer doesn't waste time, taking on a brand-new identity and a whole new set of challenges. Gregory Itzin and Jean Smart received Emmy nods for their supporting roles.