"The Naked Time" starts off as a lackluster episode of the original Star Trek series but ends up much better than it began by the episode's end. After investigating the mysterious death of a group of Federation scientists on planet Psi 2000, crew members on board the Enterprise begin to act strangely - some become violent, some get disoriented with silliness, and others loose control of their emotions. The sane part of the crew now has to race to find a cure and struggle against the unstable planet.
The first half of "The Naked Time" is far too silly for its own good. Not much of the humor works but on top of that the pacing is horrible as well. Then things start to pick about during the other half when the crew face real danger and begin to fall apart. Leonard Nimoy is especially good in this episode.