Kevin Spacey narrates this insightful profile of Johnny Carson (1925-2005), whose cool charm, quick wit, and masterful timing made him the king of late-night TV during his 30-year TONIGHT SHOW run. The biography features a wealth of TONIGHT SHOW clips and remarks by family, friends, and colleagues, including second wife Joanne; Ed McMahon, Doc Severinsen, Mel Brooks, Ellen DeGeneres, Angie Dickinson, Jay Leno, David Letterman, Bob Newhart, Don Rickles, Joan Rivers, and Garry Shandling.