Book 1

When Duffy Kerrigan and her adopted brothers and sisters, who all come from different countries, accompany their widowed father on a trip to write about and photograph the Masai people in Africa, she learns that she can accept people without having to approve of what they do.

Book 2

The Kerrigan family travels to England with their photojournalist father, and the siblings make a new friend.

Book 3

The four Kerrigan children, Duffy and her adopted siblings, who all come from different countries, accompany their father on a business trip to Australia, and encounter unexpected challenges in the Outback.

Book 4

During the Kerrigan family's trip to Hong Kong, Duffy and her adopted siblings befriend and share their Christian faith with two orphaned children who have come to live with their Chinese grandparents.