Ally is a member of American Humane. Those members are vetted before getting a foster animal. Jake told Sam that's why Sunshine did not stay with the Terry family. Also, the plot of this movie is different. Other stories tell of the dog that's overseas and the soldier coming home. Then it's the soldier trying to get the dog home. I loved the idea of a retired service dog back in the U.S. and the soldier is still serving his time in the military, without the dog beside him.