Business continues at Selfridges, but it's not business as usual. German goods have been taken off the shelves and are replaced by English products. Meanwhile, Harry has arranged for the store to hold a concert to help raise money for the troops. The show features a popular music hall tenor who also convinces Lady Mae to join him. Also participating in the concert is Miss Mardle's new lodger, a Belgian violinist, which raises some eyebrows. Soon, Lord Loxley challenges Mae about having lovers, which is not part of their new deal.