In 1960, four American scientists travel to a planet that has just entered Earth's solar system to see if it's able to support an Earth colony. They find an oxygen atmosphere, a lush earth-like forest, and earth-like animals living around a potable fresh-water lake.
William Bryant
as Dr. Ralph Martin
Patti Gallagher
as Nora Pierce
Douglas Henderson
as Dr. Richard Gordon
Wanda Curtis
as Dr. Patricia Bennett
Marvin Miller
as Narrator (voice)
