Season 2, Episode 21
Production episode: 2×21
Original air date: February 23, 1968
Star date: 4657.5
Enterprise follows a distress signal to a planet, but when Captain Kirk, Mr. Spock, Dr. McCoy, Lt. Shea, and Yeoman Thompson beam down to investigate the source, they can’t find any life signs or evidence of a ship, only readings on some “small metallic objects.” Soon they do pick up two life signs, and a man and a woman enter the clearing. The man demands control of Kirk’s ship and presses a button on a box affixed to his belt, freezing the members of the landing party where they stand. He introduces himself:
I am Rojan of Kelva. I am your commander from this moment on. Any efforts to resist us or to escape will be severely punished.