This is a case of clashing cultures caught in conflicting time accelerations. After a visit to a barren planet, people begin to disappear on board the enterprise. Kirk and one of the unfortunate red shirted crewman have been moved to a ship where time is passing at an alarming rate. This is with coffee that's not on Starbuck's menu. A small group of aliens wearing shiny Mylar suits (well, I take that back. The women wear almost nothing) are on the brink of extinction and must bring people from a different time designation to mate with. Kirk, of course, gets the queen of the whole bunch. She likes him because he is a "pretty" one. She is quite sexy and doe eyed. Because they don't fear Kirk, he is allowed access to the ship. This is a mistake because he is nothing but trouble. There is also jealousy at work on the ship. Kirk's mission is to get a message to the crew who are moving at an indecipherably slow speed. This is a good concept. It comes up short but is engaging enough to keep one's attention.