Interstellar travel at sub-light speeds: the enormous distances, isolation from human culture and the aching loneliness of space are enough to drive the strongest personality insane. Better to block all memories of human contact and to program the 12-strong crew to accept only the reality they can see and touch within their spacecraft. But a child born on "the Station" becomes insistent on learning the truth about 'Outside'.

Donald Houston
as Dr. Francis

James Hunter
as Abel Granger

John Abineri
as Col. Chalmers

Noel Johnson
as Gen. Short

Robert James
as Dr. Kersh

John Line
as

Robert Russell
as

Lionel Stevens
as

Wendy Johnson
as Mrs. Peters

Carla Challoner
as