Winter - and the lads are feeling the cold. Standing orders are not to use any fuel until a certain time. In the meantime, virginal Richardson, is enamoured at the squadron leaders' wife, who, takes pity of the lads' plight and hands him an electric heater for use in their huy. Marsh, in any case, has been stealing the boys' coke ration for his own use ... Leckey and Jakey between them, "heat up" the coke ration, themselves!