10 Worst Star Trek Time Travel Episodes

10. Non Sequitur - Voyager

If you ever wondered what Harry Kim's life would've been like if he was never stranded in the Delta Quadrant with Voyager, then Non Sequitur is the episode for you.

Somehow a transporter accident changed history so that Harry's friend Daniel Byrd got the job on Voyager instead of him, which also caused Tom Paris to never end up aboard the ship because, without Harry to come to his aid in the pilot episode Caretaker, Paris was arrested by Odo on Deep Space Nine for getting in a fight with Quark, losing him his temporary spot on Voyager's bridge. In the end the whole episode was undone by recreating the same transporter accident that changed history to begin with.

This concept could've gone so much further. The temporal anomaly that caused all of this was barely explained and we didn't even learn that much about Harry as a character, other than seeing that he would've been much happier (and actually able to have a normal relationship) if he had just stayed on Earth. The one redeeming part was seeing how much Paris changed because of being on Voyager. Non Sequitur brings back his sarcastic, slightly annoyed demeanour from the pilot.