The Wiltons receive a postcard from Arthur in Eastbourne. The Platts enjoy being close together. Nick and Melanie Hesketh skive off school for a snogging session at No.5. They are interrupted by Josie. Derek treats the card as a joke but Mavis thinks it's malicious and is certain that Des sent it. Don has a chat to Nicky about Melanie and warns him not to skip school. Billy takes Betty dancing at the Ritz Ballroom. She can't believe that she's turned into an old woman and remembers their past together. The Platts return home, their marriage patched up. Betty is stunned when Billy tells her that he wrote to her in 1945 proposing marriage.