The world seems a little too big and crazy for ten year old Izzy Willis and she finds refuge in the tree house her daddy and grandpa built for her. The day her baby brother is born, Izzy hears the words Down Syndrome for the first time. Frightened and scared, Izzy runs to the sanctuary of her tree house. Wandering through the woods, twelve year old Gavin Stone hears a young girl weeping and races to see if she's okay. When Izzy and young Gavin meet, he opens her eyes to the possibility that her family has been gifted a wonderful blessing. Izzy and Gavin form an immediate friendship that lasts for years and helps strengthen their everlasting love.