Mr. Rumbold introduces Miss Thorpe to Captain Peacock as his new temporary secretary, even though she was his secretary in two previous episodes, "German Week" and "Shoulder to Shoulder".
"Young Mr. Grace" is portrayed in the entire series as doddery and physically fragile, even usually appearing in a wheelchair. But at the end of this show, as the cast is shown dancing one by one, he breaks character and with a spring in his step, dances jauntily away with the Moira Foote character.