A rescue mission to an off-limit planet during a war among the natives. Capt. Wang is sent bck to find a probably dead crewmen left behind during an earlier visit. His crew finds themselves right in the midst of a war between the native rodents started by the group of humans who put the planet off-limits. One group of man size rodents are very helpful. One group loves to play. One bunch wants to protect themselves. The fourth are hated by all.During the search for the missing crewman Wang finds a lot of items left by the first group of humans.