The elder Forsytes continue to hide the details of the family feud from Jon and Fleur. Michael Mont, the perky son of a baronet, courts Fleur and gains the respect of Soames, while Jo hides his ill health from Irene. Belgian profligate Profond discovers the truth behind the feud, courtesy of Forsyte cousin George. He begins an affair with Annette, and drops a bombshell on Fleur: her father was once married to Jon’s mother.

The annual cricket match between Eton and Harrow facilitates awkward encounters. Fleur scrambles to get Jon to the altar before he learns the truth behind the family feud. Before he dies, Jo finally tells Jon the entire story of his mother’s first marriage, her adultery, and her rape. Jon chooses Irene over Fleur, and they plan to move abroad, as Fleur, rejected and hurt, finds comfort from Michael Mont.