Amy makes the last leg of the journey alone. Meanwhile, at the North Carolina sanctuary, a crowd of environmentalists protest the imminent destruction of the marshes. Knowing Amy is due to arrive that day, naturalist Dr Killan blocks a bulldozer. The crowd cheers as Amy and the flock arrive, effectively teaching the birds to migrate and saving the habitat from development. The journey of the geese also symbolises Amy's journey through loss, migration, accepting her new family.

Harmony Day is all about celebrating Australia’s cultural diversity. BTN looks at how Australia became the multicultural society that we know today by looking at the history of migration to this country.

Archival footage illustrates the construction of the Snowy Mountains Scheme, and how immigration helped shape multicultural Australia.

The family begin preparing for the migration south and training the geese. Igor, with a little extra encouragement, manages flight but gets into an accident and goes down in the forest. While looking for Igor, Glen the game warden steals the rest of the flock. Amy, Thomas, Barry and David plot an elaborate escape for the birds, and begin their migration early.

Amy Alden recovers from a car accident, waking up to find that her mother has died and her father, Thomas, is there to take her to Canada. When Amy arrives in Canada she learns that her estranged father is an eccentric sculptor, inventor and ultra-light aircraft pioneer. Thomas' character is based on Canadian inventor and sculpture Bill Lishman and his work with naturalist Bill Carrick. The opening scene symbolises the journey of the geese Amy adopts.

Anna shares the story of her great great great grandfather, John Egge, who immigrated to Australia during the gold rush. After that time, many Chinese workers decided to go back to China, but many stayed and have made Australia their home. Find out more about their story and how their culture has impacted the country.

In the 1840s, Caroline Chisholm transformed the social fabric of Australia with an employment agency for young colonial women.