STAR TREK 1966-1969 SEASON ONE AIRED - 1966-1967 Captain Kirk and the crew of the U.S.S. Enterprise boldly go where no man has gone before, exploring strange new worlds and discovering new civilizations. SEASON TWO AIRED - 1967-1968 The adventures of the Enterprise crew continue, as the ship encounters alien lifeforms and a few familiar faces. SEASON THREE AIRED - 1968-1969 The Enterprise's five-year mission continues, as Kirk, Spock and crew fight Romulans, Klingons, and the occasional beautiful-but-deadly woman.