For years, visitors to Ash Hollow, NE, have knocked on Bea Bartling's door and asked to see her famous pioneer roses, which once marked the wagon train trails. Each time, Bea hopes to see her estranged son, Nathan, but he never appears. After learning that he has been killed in an accident, Bea loses her faith in God and hardens her heart to the woman and child who appear on her doorstep weeks later. Gemma Bartling was an unwed mother with a young daughter, Paisley, when she met Nathan, and his love helped her find security again. Now he's gone, and she has pinned her last hopes on his mother. It takes a mysterious gardener, a pastor who never gives up, and the open heart of a small girl to break through the shells surrounding both Bea and Gemma and lead them back to God.