Star Trek: The Original Series the 23rd century bearing a crew dedicated to exploring the Milky Way Galaxy. Roddenberry noted a number of influences on his idea, some of which includes A. E. van Vogt's tales of the spaceship "Space Beagle", Eric Frank Russell's "Marathon" series of stories, and the film "Forbidden Planet" (1956). Some have also drawn parallels with the television series "Rocky Jones, Space Ranger" (1954), a space opera which included many of the elements that were integral to "Star Trek"—the organization, crew relationships, missions, part of the bridge layout, and some technology. Roddenberry also drew heavily from C. S. Forester's Horatio Hornblower
Obsession (Star Trek: The Original Series) Obsession (Star Trek: The Original Series) "Obsession" is the thirteenth episode of the of the American science fiction television series "", broadcast on December 15, 1967. It is episode No. 42, production No. 47, written by Art Wallace, and directed by Ralph Senensky. In the episode, Captain James T. Kirk becomes obsessed with destroying a deadly entity he once encountered in his youth. During a survey for tritanium deposits, three members of a landing party from the Federation starship USS "Enterprise" are attacked, their blood drained of hemoglobin. Fearing the killer to be a gaseous entity he had encountered eleven