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.
Andrew Bass, Milovan Drumm and Arleigh Marley are the Freebooters, three friends who roam the world seeking lost treasures. They often encounter people in trouble, and try to resolve their problems while locating the treasures they seek.