STAR TREK THE ORIGINAL SERIES: THE COMPLETE SEASONS 1-3 features the adventures of the U.S.S. Enterprise under the command of Capt. James Kirk (Shatner) and his first officer, Lt. Cmdr Spock (Nimoy) during the 23rd century. They are on a mission in outer space to explore new worlds, where the Enterprise encounters Klingons, Romulans, time paradoxes, tribbles and genetic supermen.
