Most of the episodes are set in either Flanders (the trench lines of the Western Front) or the Balkans (Salonika front), while a few narrate events in Africa or the Near East.

The two principal characters are Mickey Bliss, a professional signals (wireless and telephone) NCO of the Indian army, whose initiative leads to his becoming an intelligence officer, and Celestine de Tullio, an English doctor who volunteers as a medical officer with the Serbian army in the Balkans, partly to avoid both her estranged family and Mickey Bliss.

The three of the radio plays are series creator and writer Jonathan Ruffle and directors David Hunter and Jonquil Panting.

Other writers include Ruffle, Michael Chaplin, Nick Warburton, Avin Shah and Nandita Ghose.

This article about a radio show or programme in the United Kingdom is a stub.