In answer to a distress call from a stranded astronaut; MR4 has diverted to Venus. By a trick, the rocket's univited guest Harcourt Brown has made pilot Henderson decide to land on the unknown world beneath the carbon cloud.
Guy Verney
Director
George Coulouris
Harcourt Brown
Gerald Flood
Conway Henderson
Graydon Gould
Captain Wilson
Pamela Barney
Professor Mary Meadows
Hester Cameron
Margaret Henderson
Stewart Guidotti
Geoffrey Wedgwood