They were left outside because the Lady Pilot was suppose to turn right around (be gone 2 hours roughly) and come back and get them but when they got to where they were going they wouldn't let her leave the compound.
I bawled like a baby. My DH was making fun of me saying I don't cry for human movies, but I'm hysterical for the dog movies. LOL I don't know what to say.

I kept thinking of the Katrina People who lost their pets and how their pets must have felt and that's why the tears wouldn't stop.
The one part in there is startling .... I jumped out of my chair. :D I'm not saying what part it's in because I don't want to spoil it for others.
VERY good movie, if you don't mind crying.