Grandma Katie and Poppie Charlie live in the lovely town of Treetown, USA, where everyone pretty much looks like them. When Grandma Katie meets Olivia, a refugee from Africa, she starts to think about the great big world and the many kinds of people who live in it. She remembers how blessed she is to live in the United States, and decides to help Olivia achieve her own dream of freedom.

Olivia narrowly escaped the wrath of an evil dictator in her home land, and she could not bring her family to the United States. She needs to find a home large enough for her family to live. Grandma...