Del Boy (who is now Lord of Peckham) and Raquel live in a lavish high-rise building, Trotter Towers, but Rodney himself is merely an old messenger, Cassandra is a maid (after Damien took over her bank and fired her), and Uncle Albert's body has been preserved (all he can say is his trademark phrase "During the war..." on a constant loop).
Meanwhile, at Sid's café, Trigger is telling everyone about a medal he received from the local council for using the same broom for twenty years, despite the fact that it has actually had 17 new heads and 14 new handles in that time.
Del buys tickets for himself and Rodney to attend a publican's fancy dress birthday party, Cassandra goes to Spain with her mother, and Raquel and Damien visit her parents.
At Del's request, he and Rodney go to the party dressed as Batman and Robin respectively, but their Reliant Regal van breaks down halfway there and they have to run the rest of the way.
En route they interrupt an attempt to mug Councillor Murray, emerging from the fog dressed as Batman and Robin which scares away the thugs.