be impossible to restart them by normal procedures before the Enterprise crashes into the planet. Spock becomes infected when Nurse Chapel takes his hands and confesses her love for him. Spock struggles to contain his emotions, and infects Captain James T. Kirk when he tries to help. McCoy studies blood samples from his patients and water from Psi 2000 and finds that the water from the planet possesses a previously undetected complex chain of molecules that affects humanoids like alcohol, depressing the centers of judgment and self-control, and is transmitted by touch. He develops a serum to reverse the effects, administering the initial doses to the command crew to allow them to bring the ship back under control. Kirk orders Scott to make a full-power restart of the warp engines, a dangerous process that mixes matter and antimatter in a cold state to create a controlled implosion and drive the ship away from the planet. This is suggested by a theory postulating a relationship between time and antimatter, but it has never before been attempted. The restart is successful, propelling the Enterprise at impossible speed away from the planet into a space-time warp that sends the ship back 71 hours in time. Spock comments that they now know a way to travel back through time. Kirk's response is "We may risk it someday, Mr. Spock." Production "The Naked Time" was originally intended to be a two-part episode, with part one ending with a cliffhanger with the Enterprise going back in time. The ending was revised so it would become a standalone episode. What would have been part two eventually became another standalone episode, "Tomorrow Is Yesterday". When the script required Lieutenant Sulu to reveal that in his deepest self he sees himself as a swashbuckler, George Takei had to learn how to handle a fencing rapier in a hurry. When not needed on the set, he would practice fencing, frequently lunging at passing members of the film crew and sometimes pinking them. A delegation eventually called on Gene Roddenberry and threatened that the entire crew would quit if Sulu were ever given a sword again. "The Naked Time" is the only episode of The Original Series in which the rank of Lieutenant (junior grade) was shown or referred to. The sleeve insignia of that rank is a single broken stripe, and Joseph Tormolen is the only member of the Enterprise