Dad's Army

Captain Mainwaring's men obtain a boat with the intention of using it for coastal patrols. However, a thick fog leads them astray, and after hours of navigating in the mist they finally reach dry land, convinced they have crossed the Channel.

Sons of the Sea is a programme presented as a single episode. Classified within the episode genre, it delivers a self‑contained narrative that centres on a maritime‑themed incident. The title itself points to a story set on or near the water, signalling to the audience that the plot will revolve around seafaring activity. In this instalment, Captain Mainwaring’s men succeed in obtaining a small boat. Their aim is to put the vessel to use for regular coastal patrols, allowing them to keep watch over the shoreline and maintain a visible presence at sea. The acquisition of the craft marks the beginning of their intended duties away from the usual land‑based routine. Soon after setting out, a thick fog rolls in, blanketing the horizon and obscuring any familiar landmarks. Visibility drops to almost nothing, leaving the crew disoriented and unable to navigate correctly. The dense mist becomes the central obstacle that drives the action forward, as the men struggle to maintain a sense of direction. When the fog finally lifts, the party finds solid ground. Confronted with unfamiliar terrain, they become convinced they have crossed the English Channel and reached continental Europe. Their belief that they have successfully traversed the waterway forms the climax of the episode, highlighting the confusion caused by the earlier loss of bearings.