It's the 23rd century, and a mysterious alien power is threatening Earth by evaporating the oceans and destroying the atmosphere. In a frantic attempt to save mankind, Kirk and his crew must travel back in time to save the Earth and its people from total destruction.

GENRE: Science Fiction, Adventure, Comedy
MPAA RATING: No Rating
RUN TIME: 1h 59m
RELEASE DATE: December 31, 1969
STARRING: William Shatner, Leonard Nimoy, DeForest Kelley, Catherine Hicks, Brock Peters
DIRECTOR(S): Leonard Nimoy
PRODUCER(S): Harve Bennett
WRITER(S): Nicholas Meyer, Harve Bennett, Steve Meerson, Peter Krikes
STUDIO: