The 19th episode of the animated Star Trek airs on NBC, featuring scenes set in the Enterprise’s “recreation deck”, which can simulate any environment – more than a decade before Star Trek: The Next Generation’s holodeck. 
Stardate 3183.3: Attacked without warning by a handful of Romulan warships, Kirk puts the Enterprise on a heading into an energy cloud of unknown origin and composition – and then things really start to go wrong. The cloud has a drastic effect on the Enterprise’s main computer, giving it a mischievious sense of humor. At first, the computer forces the crew to endure harmless pranks, but as its occupants shrug off these annoyances, the stakes are increased when the Enterprise sets itself on a not-so-funny course right back into the crossfire of the Romulan ships.
written by Chuck Menville
directed by Hal Sutherland
music by Yvette Blais & Jeff MichaelCast: William Shatner (Captain Kirk), Leonard Nimoy (Mr. Spock), DeForest Kelley (Dr. McCoy), James Doohan (Mr. Scott), George Takei (Lt. Sulu), Nichelle Nichols (Lt. Uhura), James Doohan (Scotty / Lt. Arex), Majel Barrett (Lt. M’ress / Computer Voice), Norm Prescott (Romulan Commander), Lou Scheimer (Romulan)
LogBook entry by Earl Green