The Party (S03E09)

It is coming up to Christmas and Henry Knox, manager of Peckham's toy factory, is doubly incensed. First, he has heard a rumour that the factory will be subject to a take-over by a foreign firm who will not want to keep him. Then he learns that young Leighton, another employee, is organizing a staff disco the night before the works' Christmas party that Henry has always arranged. (Prime Video)