Space. The Final Frontier. The U.S.S. Enterprise embarks on a five year mission to explore the galaxy. The Enterprise is under the command of Captain James T. Kirk with First Officer Mr. Spock, from the planet Vulcan. With a determined crew, the Enterprise encounters Klingons, Romulans, time paradoxes, tribbles and genetic supermen lead by Khan Noonian Singh. Their mission is to explore strange new worlds, to seek new life and new civilizations, and to boldly go where no man has gone before.
The original series may be a bit hard to watch with a modern mind set, but the episodes still contain the key discussions on what it is to be human. Really the show was a great platform for modern thinking and is worth watching to understand the process that people went through to get to the modern day. Yes it is Science Fiction, but really it is Social Commentary.