A bomb dooms the first space satellite, manned by a selfless crew, a stowaway reporter (Lois Maxwell) and a mad scientist (Donald Wolfit).
Kieron Moore
as Cmdr. Michael Haydon
Lois Maxwell
as Kim Hamilton
Donald Wolfit
as Prof. Merrity
Bryan Forbes
as Jimmy Wheeler
Jimmy Hanley
as Larry Noble
Barry Keegan
as Lefty
Walter Hudd
as Professor Blandford
Donald Gray
as Captain Ross
Thea Gregory
as Barbara Noble
Shirley Lawrence
as Ellen
Peter Neil
as Tony
Ryck Rydon
as Reporter
