Trust, a 5-year old Greyhound. Had the most perfect life for a dog, then it all changed, when earth was invaded by aliens. Separated from her humans, with a promise she made with her owner. She must keep her promise she made with Rose, just before "they" came to take Trusts humans away. Trust must make her journey through the empty streets, buildings, forests, to find Rose. For she already knows the rest are dead.
Trust must learn to survive and defend herself from the aliens. In order to find Rose.