A spin-off of "Battlestar Galactica," this series takes place 30 years after the original. Upon reaching Earth, the inhabitants of the renegade star fleet take action when they realize that Earth is not yet capable of defending itself. If the Galacticans land, the Cylons will follow and destroy the planet. Cmdr. Adama (Lorne Greene) sends warriors to blend into the scientific community in an effort to increase Earth's technological expertise. Robyn Douglass and Herb Jefferson Jr. co-star.