 Three U.S. astronauts blast off from Earth on an initial test flight in an experimental rocket-ship, but during the flight into space the ship disappears from radar, then reappears. On return, the rocket-ship is hangared and put under a tarp, pending an investigation. One crewman (Jim Hutton) is hospitalized for a leg broken on landing, and is visited by the other two. Next the pair go for a drink, and then one crewman (Charles Aidman) phones his parents from a bar phone-booth - but they say they have no son ! The astronaut immediately disappears, and no one in the bar remembers him, except the other astronaut in the bar, the Captain (Rod Taylor).