Colditz 2x03, "Odd Man In"

This is sadly the last episode written by the brilliant Arden Winch, who wrote S1's two Dick Player-centric episodes ("Name, Rank, and Number" and "Lord, Didn't It Rain") and who himself served in British Intelligence.

Via a recaptured French escaper, Simon learns about the escape lines in existence throughout Europe to help escaped POWs get out of German-held territory. He decides that Colditz escapees need to be able to use the lines, but doing so involves getting a contact name from British intelligence. With the help of a former intelligence officer (who I think is Palmer, although I don't recall ever hearing his name in the actual episode), Simon sends a coded postcard to his wife Cathy, putting in hints that he hopes will alert her that the message is unusual and should be brought to someone's attention.

( Click here to read more. )