Those naughty Klingons are at it again: when Kirk, Spock and McCoy beam down to Capella IV to negotiate a mining agreement with the inhabitants they discover that Kras (Tige Andrews), a Klingon emissary, is attempting to beat them to the punch. The Capellan leader, Akaar (Ben Gage), is impressed by the Federation's offer, but rival Maab (Michael Dante) sides with the Klingon. When Maab seizes control and kills Akaar, Kirk, Spock and McCoy escape into the hills, taking Akaar's pregnant wife Eleen (Julie Newmar) with them.
Meanwhile, the Enterprise, commanded by Scotty, is lured out of orbit by a decoy distress signal and challenged by a Klingon warship.
I can't say that I was overly impressed by Friday's Child: it's a passable time-waster but doesn't do anything new or interesting. We've seen Kirk and his pals negotiating with primitive races before, we've seen them running around the Vasquez rocks before, and we've seen cat and mouse antics in space with enemy craft before. Admittedly, we've never seen McCoy say 'Oochy woochy coochy coo' to a newborn Capellan before, but that's probably a good thing: once is more than enough.
5.5/10, rounded down to 5 for the Capellan warriors' appearance, their blonde ponytails, open-faced hoods and coloured, faux-fur sashes more likely to have the enemy creased up in fits of laughter than trembling in fear.