Dr. Fred Steele (Umberto Orsini) and Eve Barnett (Maya Brent) work together at an astronomical station on a bucolic island. The station's scientists learn they must deal with a rogue planet -- "The Outsider" -- that has entered the solar system. which must be controlled by an alien intelligence… Professor Benson's(Claude Rains) expedition discovers a race of humanoid creatures dead...
as Professor Benson
as Cmdr. Robert Cole
as Eve Barnett
as Dr. Fred Steele
as Mrs. Collins
as Cathy Cole
as Dr. Cornfield
as Boyd
as General Varreck
as Lewis Boyd
as Pat
as Supervising Commissioner
as Barrington
as United Commission Member
as Moran