Trouble seems to follow our intrepid heroes even while they vacation. Fortunately for them, though, this trouble winds up providing them with plenty of kicks. Though Star Trek nearly always maintains a healthy sense of humor, in Shore Leave that is brought to the fore, even as the crew's lives are seemingly threatened by an unusual menace. We get to have some fun with the thing both before and after our discovery that their lives were never really in jeopardy. That's especially nice, because not every mystery remains interesting even after being solved. This is a fun hour of Trek, and I hope the crew enjoyed going through it as much as I did watching it.