Sci-fi series about the crew of Moonbase Alpha. Our Moon was being used as a nuclear waste disposal site. Somehow a chain reaction caused an explosion large enough to knock the Moon out of Earth's orbit and into deep space! Unable to return to Earth, the crew experiences one disaster after another in their quest to survive their journey through the galaxy! Cast: Commander John Koenig: Martin Landau Dr. Helena Russell: Barbara Bain Capt. Alan Carter: Nick Tate Sandra Benes: Zienia Merton Tony Verdeschi: Tony Anholt Operative Kate: Sarah Bullen Controller Paul Morrow: Prentis Hancock Bill Fraser: John Hug David Kano: Clifton Jones Moonbase Alpha Computer: Barbara Kelly Dr. Ben Vincent: Jeffery Kissoon Prof. Victor Bergman: Barry Morse Yasko: Yasuko Nagazumi Dr. Bob Mathias: Anton Phillips Tanya Alexandria: Suzanne Roquette Maya: Catherine Schell Dr. Ed Spencer: Sam Dastor Alibe: Alibe