The 17th episode season of the animated Star Trek series airs on NBC. The second season premiere is written by 19-year-old Star Trek fan (and future Trek novelist) Howard Weinstein. 
Stardate 6334.1: A small epidemic of choriocytosis strikes the Enterprise crew, but it is considered a minor bug until Spock contracts the disease, which can be fatal to Vulcans. Worse yet, the antidote that will save Spock’s life is a rare substance, and the nearest source is four days away. When Orion pirates attack a ship ferrying the vital medicine to the Enterprise, Kirk embarks on a risky quest not only for Spock’s sake, but for the freedom of the space shipping lanes…but the price of securing that freedom could be the destruction of the Enterprise.
written by Howard Weinstein
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 / Huron Officer), Nichelle Nichols (Lt. Uhura), James Doohan (Lt. Arrex / Capt. O’Shea / Orions), Majel Barrett (Nurse Chapel / Huron Officer)
LogBook entry by Earl Green