Peter Graves plays Jim Kingsley, the head of the Office of National Resources, a secret government agency that takes on complex security cases and threats.
A special team of investigators are assigned to track down a Swedish seaman. The sailor jumped ship in Chicago with a suitcase containing what he thinks is a cradle, but it is actually a time bomb meant to destroy his ship.
Aliens from an overcrowded planet are sent to Earth to see if there is suitable for colonization. They meet a friendly physics professor who tries to explain the strange customs of human beings.