Adam Garrick is an ex-rodeo cowboy, now divorced, and owner of the Double O Ranch. Out of nowhere, he receives a letter from Caroline Carter, the widow of his closest friend. He hasn't seen Caroline in years— but she's coming to visit him, bringing her five-year-old adopted daughter, Rosie. The adoption was arranged by her husband, and Caroline has never known the name of the biological father. But Adam knows. Rosie's his daughter. Can he keep this secret? Should he?