This is, of course, a sequel to the original series episode "Shore Leave", and it's one of the few animated episodes that features both an A and a B story; one on a planet and one on the ship. The cutting back and forth between the ship problems and the planet drama is reminiscent of the original series as well as a precursor to Star Trek: The Next Generation. In addition, the episode touches on living machines and features, for the first time in Star Trek, the Enterprise losing gravity. (Both these ideas would be expanded upon in the feature films.) It all adds up to a fun, memorable episode.