How does one select the worst episode of Star Trek? There are over 900 entries across almost 50 series to choose from. With numbers like those, there have to be a few missteps. Some might pick the episode of Voyager in which Tom Paris and Captain Janeway become salamanders and spawn children. Others might name the extraordinarily racist TNG entry in which African-themed aliens kidnap Tasha Yar. Those fans that prefer the early terrible episodes can't go wrong with "Spock's Brain."