Låter som en Logans Run-episod, Crypten.
Logan, Jessica and Rem come across a civilization which was devastated by the holocaust. They find a recording wherein they learn that there was a plague that nearly wiped out everyone. But 6 were chosen to rebuild what was destroyed and were kept in suspended animation till a cure could be found. Fortunately a cure was found but no one was left who could administer it. So they ask whoever sees this recording to bring the cure to them. They try but an earthquake destroys one of the two flasks. They awake the six and when they learn what happened only three of them can receive the cure. So they put it in their hands to decide who should get the cure. And while they try to decide someone is killing the six one at a time