"Space Seed" is an episode of the American science fiction television series Star Trek. First broadcast by NBC on February 16, 1967, it was written by Gene L. Coon and Carey Wilber and directed by Marc Daniels. Set in the 23rd century, the series follows the adventures of Captain James T. Kirk (William Shatner) and his crew aboard the starship USS Enterprise. In the episode, they encounter a sleeper ship holding selectively bred superhumans from Earth's past. Khan Noonien Singh (Ricardo Montalbán) attempts to take control of Enterprise with the help of Marla McGivers (Madlyn Rhue). Montalbán, the casting director's first choice, described the role as "wonderful". The script changed many times during preproduction, in part to reduce costs, but the special sets and shots using starship miniatures took the show over budget. Although the episode did not win its time slot on its first run, it has been named one of the best of the series by Cinefantastique, IGN, and other publications. The 1982 film Star Trek II: The Wrath of Khan serves as a sequel to "Space Seed", and plot elements from both were used in the 2013 film Star Trek Into Darkness. (Full article...)