After a collision with a comet, a nearly 8km wide piece of the asteroid "Orpheus" is heading towards Earth. If it will hit it will cause a incredible catastrophe which will probably extinguish mankind. To stop the meteor NASA wants to use the illegal nuclear weapon satellite "Hercules" but discovers soon that it doesn't have enough fire power. Their only chance to save the world is to join forces with the USSR who have also launched such an illegal satellite. But will both governments agree?
Elenco: Sean Connery , Karl Malden , Henry Fonda , Brian Keith , Natalie Wood , Trevor Howard , Martin Landau , Richard Dysart , Joseph Campanella , Bo Brundin , Katherine De Hetre , James G. Richardson , Roger Robinson , Michael Zaslow , John Findlater , Paul Tulley , Allen Williams , Bibi Besch , Gregory Gaye , Clyde Kusatsu , Burke Byrnes , Joe Medalis , Charles Bartlett , Raymond O'Keefe , Henry Olek , Peter Bourne , Stanley Mann , Ronald Neame , Philip Sterling , Arthur Adams , Fred Carney , Sybil Danning , Meschino Paterlini , Joe Yune , Eileen Saki , Christine Anne Baur , Paul Camen , Dorothy Catching , Bill Couch , William Darr , Joan Foley , Paul Laurence , Johnny Moio , Read Morgan , Conrad E. Palmisano , Tony Rocco , Jesse Wayne , Carole Hemingway , Clete Roberts , Stu Nahan , Osman Ragheb , Yu Wing , Yau Tsui Ling , Rick Slaven , James Bacon , Yani Begakis , Selma Archerd , Domingo Ambriz , Peter Donat , Simon Cadell , Philip Ettington , John McKinney .