For some reason, this episode is called Know Thyne Enemy. I don't know where the 'y' in 'Thyne' came from, but there it is. Anyway, this is episode 1 in the new series of Hut 33 - details of which can be found here.
This episode is an attempt to actually do a story about codebreaking - which is about as hard to do as it sounds. Stories about codebreaking that are comprehensible are quite hard. To do them on the radio makes them even harder. To make them funny on the radio, well, that's a bit of a tall order. But that is, after all, the premise of the show, so it's my own fault. You can be the judge of how successful I've been with this episode. Have a listen anytime from 11.30am on Wednesday 14th October.