Yvonne is reading a biography of Noël Coward and when Gary realises it contains a picture of him in the 1940s, he must take drastic action to ensure his time travelling isn't exposed in the 1990s. Meanwhile, Ron accidentally books a singles holiday with amorous old ladies, and a recently discovered Noël Coward play, Gary & Phoebe, catches Yvonne's eye.

When Yvonne witnesses Gary go through the time portal, and then finds a picture of Gary and Phoebe from the 1940s, she's not satisfied with Gary's answer and demands the truth. In 1945, celebrations for VE Day are beginning and future Prime Minister, Clement Attlee, is in town to join the festivities. Unfortunately for Gary, things are about to change even more than he suspects.