Star Trek: The Animated Series, Series 2, Episode 6. First broadcast on Saturday 12 October 1974.

A return to the realm of cheap Saturday-morning-cartoon Trek, where the only person apparently putting in any effort is Master of Dialect, Jimmy Doohan. This week, we find ourselves in a universe where space is white, stars are black, people age backwards, women give birth to large old men, and the Enterprise crew are listless, lifeless and dull.