Réalisation: Byron Haskin
Après avoir enquêté sur le crash de plusieurs météorites, le docteur Forrester est persuadé que le phénomène n'est pas naturel. Sa théorie se confirme lorsque des extraterrestres envahissent la Terre et plongent la population dans le chaos. Pour empêcher l'invasion, le gouvernement prépare une attaque nucléaire…
Gene Barry
Clayton Forrester
Ann Robinson
Sylvia Van Buren
Lewis Martin
Matthew Collins
Les Tremayne
General Mann
Frank Kreig
Fiddler Hawkins (uncredited)
Vernon Rich
Ralph Heffner
Sandro Giglio
Dr. Bilderbeck
Ann Codee
Dr. Duprey (uncredited)
Robert Cornthwaite
Dr. Pryor
Cedric Hardwicke
Commentary (voice)
Houseley Stevenson Jr.
General Mann's Aide
William Phipps
Wash Perry
Jack Kruschen
Salvatore
Paul Birch
Alonzo Hogue (uncredited)
Paul Frees
Second Radio Reporter / Opening Announcer
Henry Brandon
Cop at Crash Site
Peter Adams
Pine Summit Fire Watcher (uncredited)
Eric Alden
Man (uncredited)
Hugh Allen
Brigadier General (uncredited)
Ruth Barnell
Mother (uncredited)
Gene Barry
Clayton Forrester
Ann Robinson
Sylvia Van Buren
Lewis Martin
Matthew Collins
Les Tremayne
General Mann
Frank Kreig
Fiddler Hawkins (uncredited)
Vernon Rich
Ralph Heffner
Sandro Giglio
Dr. Bilderbeck
Ann Codee
Dr. Duprey (uncredited)
Robert Cornthwaite
Dr. Pryor
Cedric Hardwicke
Commentary (voice)
Houseley Stevenson Jr.
General Mann's Aide
William Phipps
Wash Perry
Jack Kruschen
Salvatore
Paul Birch
Alonzo Hogue (uncredited)
Paul Frees
Second Radio Reporter / Opening Announcer
Henry Brandon
Cop at Crash Site
Peter Adams
Pine Summit Fire Watcher (uncredited)
Eric Alden
Man (uncredited)
Hugh Allen
Brigadier General (uncredited)
Ruth Barnell
Mother (uncredited)
Gene Barry
Clayton Forrester
Ann Robinson
Sylvia Van Buren
Lewis Martin
Matthew Collins
Les Tremayne
General Mann
Frank Kreig
Fiddler Hawkins (uncredited)
Vernon Rich
Ralph Heffner
Sandro Giglio
Dr. Bilderbeck
Ann Codee
Dr. Duprey (uncredited)
Robert Cornthwaite
Dr. Pryor
Cedric Hardwicke
Commentary (voice)
Houseley Stevenson Jr.
General Mann's Aide
William Phipps
Wash Perry
Jack Kruschen
Salvatore
Paul Birch
Alonzo Hogue (uncredited)
Paul Frees
Second Radio Reporter / Opening Announcer
Henry Brandon
Cop at Crash Site
Peter Adams
Pine Summit Fire Watcher (uncredited)
Eric Alden
Man (uncredited)
Hugh Allen
Brigadier General (uncredited)
Ruth Barnell
Mother (uncredited)