In the near future, a space station dubbed Earth II is built for the purpose of scientific research and world peace. However, that peace is shattered when the Chinese send up a nuclear bomb that is orbiting just a few miles away from the station. Can the crew disarm the bomb before it detonates, not only destroying the station but setting off World War III?
Gary Lockwood
as David Seville
Scott Hylands
as Jim Capa
Hari Rhodes
as Dr. Loren Huxley
Anthony Franciosa
as Frank Karger
Mariette Hartley
as Lisa Karger
Gary Merrill
as Walter Dietrich
Inga Swenson
as Ilyana Kovalefskii
Edward Bell
as Anton Kovalefskii
Lew Ayres
as President Charles Carter Durant
Brian Dewey
as Matt Karger
Diana Webster
as Hannah Young
Bart Burns
as Steiner
