When a local pilot crashes near Larkfield Manor, Phyllis is terrified for Jack, who has entered the King's Cup air race. Jack decides to continue the race despite Phyllis' fears. Rosemary confides in Liz that Peter and Laura appear to have had a row and were cold to one another before Laura left for a visit with cousins. Later, Phyllis receives a letter from Katie Biggins, who reveals that Peter has checked into a hotel in Nice with a young woman he is passing off as his wife. A furious Arthur leaves for Nice with Geoffrey. Phyllis dreams of a plane crash and her husband's death just as Jack begins the race. Rushing to phone him, Phyllis falls down the stairs and goes into premature labor. Liz calls Jack with sobering news. Jack begs Liz to save Phyllis if it's down to her or the baby. Arthur and Geoffrey arrive in Nice and confront Peter, but the identity of his secret lover shocks them even more. At Larkfield Manor, Liz finally emerges from Phyllis' room with news.