'Mission: Impossible: The Original TV Series' follows the elite covert operations unit I.M.F. as they carry out only the most hazardous of espionage missions. Each an expert in their own field, the group of extraordinary spies was first led by Daniel Briggs (Steven Hill) and later overseen by Jim Phelps (Peter Graves). Each episode featured the now-famous tape-recorded message outlining the latest task for the group to tackle. Popular during the Cold War, the group's missions centered on toppling dictators, shutting down corrupt organizations and exploiting crime lords. The I.M.F. crew include disguise expert Rollin Hand (Martin Landau), charmer Cinnamon Carter (Barbara Bain), electronics technician Barney Collier (Greg Morris), strong man Willy Armitage (Peter Lupus) and, in later episodes, disguise-master Paris (Leonard Nimoy). Sam Elliot and Lesley Ann Warren also star.