The Alternative Factor

"The Alternative Factor" is a first season episode of the original science fiction television series, Star Trek. It is episode #27, production #20, and was broadcast on March 30, 1967. The episode was written by Don Ingalls, and directed by Gerd Oswald. In this episode, the crew of the USS Enterprise encounters a "reality jumping" madman. This is the first Star Trek episode to deal with a parallel universe.

The Alternative Factor

"The Alternative Factor" is a first season episode of the original science fiction television series, Star Trek. It is episode #27, production #20, and was broadcast on March 30, 1967. The episode was written by Don Ingalls, and directed by Gerd Oswald. In this episode, the crew of the USS Enterprise encounters a "reality jumping" madman. This is the first Star Trek episode to deal with a parallel universe.