X minus One, Vol. 2

“Countdown for blastoff ... X minus five, four, three, two, X minus one ... Fire! From the far horizons of the unknown come transcribed tales of new dimensions in time and space. These are stories of the future; adventures in which you'll live in a million could-be years on a thousand may-be worlds.”

Thus began each episode of X minus One, a half-hour science fiction radio series which was broadcast from 1955 until 1958. Initially a revival of NBC's Dimension X, the first fifteen episodes we...