On return from London, Mainwaring is shocked to find that almost all of the platoon are playing in a darts tournament against Hodges and the wardens, which they refuse to leave, despite losing. Wilson is displeased as Hodges has bought Mavis a drink and seems to be getting overly familiar with her. When a call comes through that a suspected IRA terrorist is in the area, however, the men pull together – eventually – and Wilson proves to Mavis and the others that he is the hero of the hour.