Late one night, as she checks on the animals in her care before bed, the peaceful silence surrounding Barby Keel's animal sanctuary is shattered by the sound of a van screeching into the driveway before roaring off into the distance.

Hurrying to the front of the sanctuary, Barby is horrified by the sight that greets her. In her many years caring for neglected and mistreated animals, Barby has seen the worst of what people can do to the creatures in their care, but the sight of the dog in front of her shocks her to her core.

As her torch beam sweeps the trembling body of the greyhound that has been dumped on her doorstep, she can see every rib and every bone through the patches of matted hair. Badly beaten, it's clear that the dog is only hours from death.

A year into her second cancer diagnosis, Barby puts all thoughts of her own health aside as she throws herself into caring for the greyhound, who she names Bailey.

Can Barby save Bailey's life? And who will care for the animals at the sanctuary if Barby doesn't survive her second cancer diagnosis?