After an asteroid draws an astronaut and his ship to its surface, he is miniaturized by the phantom planet's exotic atmosphere.

Dean Fredericks
as Captain Frank Chapman

Coleen Gray
as Liara

Anthony Dexter
as Herron

Dolores Faith
as Zetha

Francis X. Bushman
as Sessom

Richard Weber
as Lt. Ray Makonnen

Al Jarvis
as Judge Eden

Dick Haynes
as Col. Lansfield

Earl McDaniel
as Capt. Leonard

Mike Marshall
as Lt. White
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There seemed to be a lot of dodgy thinking going on, considering this was space exploration. For instance, spaceships going along a certain route keep on mysteriously disappearing, and the man in charge simply decides to send one more ship at a time, along the same route. What's going to happen when...