To avoid a confrontation with Romulans, Kirk orders the ship through a unknown energy field. They escape the Romulans, but the energy field has changed the ship's computer into a prankster. It begins pulling more and more complicated practical jokes on the crew, finally to the point of endangering McCoy, Uhura, and Sulu on the Recreation Deck. Besides those three's lives, the Romulans re-appear and threaten the ship. The practical-joking computer actually helps distract the Romulans for a short while, but then the ship is once again set upon. Kirk tricks the computer (using reverse logic) into re-entering the energy field, which restores the computer to normal, but makes the Romulans' computers into pranksters instead. Written by
Did You Know?
This is the first appearance of a holodeck - called a Recreation Deck - in the "Star Trek" universe. See more
The Enterprise deploys an inflatable ship 20 times the size of itself. Even though it is presumably a thin skinned balloon, it would take a lot of material to create. There would have to be large compressed air tanks within it and the amount of air or whatever gas is used would need to be 20 times the volume of all the air needed to keep the enterprise crew alive. See more
When I get my hands on the clown who's behind all this, I'll put him in sickbay for a week!