Marriage, politics and the possibility of a life beyond Oil Drum Lane bring new tensions between the Steptoes. Their business and home life also become increasingly complicated as Harold tries to move forward while Albert remains resistant to change.
Harold finally gets to the altar with Albert as his best man.
When Albert gets locked in the outside loo, Harold arrives back to find no dinner. But he is not worried as he has found a rare piece of porcelain and he wants to put it up for auction.
Harold decides that he wants central heating for the house and plans to install the system himself.
When the money runs out and the bills mount up, a summons is delivered from the local butcher demanding payment. Barricading themselves in the house, the Steptoes need something drastic to happen.
When Harold brings his current girlfriend back home after a date, he finds that he has to entertain her in the yard because Albert will not go upstairs to sleep. So he decides to leave and rent a flat in town.
Harold invites the local Labour Party organizer to a meeting, hoping they will adopt him as their candidate for the next election. Albert, who supports the Tories, plans to thwart his ambitions.
Harold takes Albert on a trip to France to see the battlefields of the First World War. But as soon as the plane has takes off, he starts arguing with an American passenger about their involvement in the conflict.
