Bea and Pete fly in to the US, joining Tom and Monk on a visit to an Indian reservation to investigate the possibility that Tom and Bea's grandmother was a native American.

Tom rents a classic convertible car and meets Ally for lunch, where they get to know each other a little better.

Bea and Pete arrive from England to share his last two weeks in America with him.

Tom has done some more genealogical research and discovered that his and Bea's great-great-grandmother, Rebecca, may have been a native American Indian. He, Pete, Bea, and Monk drive to an Indian reservation to trace his native American past and meet Running Bull, a chief, and White Feather, an elderly shaman.

Their enquiries lead them to a local store, where the owner, Marty, reveals the remarkable truth about Tom's great-great-grandmother. And a phone call from Mr. Pfister in London, who has Tom's DNA results, tells him even more about his roots.