John Garcia

This documentary series from National Geographic follows caring veterinarians and animal trainers who join forces to heal and rehabilitate sick, abandoned and problem pets at DogTown, a Utah shelter for unwanted canines. In these episodes, pooches in need are given medical attention and training; dogs raised in horrific conditions at a puppy mill get help; gravely ill and psychologically damaged animals receive treatment; and more.

For hundreds of sick and abandoned animals across the nation, the Best Friends Animal Sanctuary provides rescue and rehabilitation. Located in Utah, the Sanctuary has for 25 years been taking on the most "unadoptable" cases of canine need. The third season of this National Geographic series includes 10 heartwarming stories of rescued pups, including canine refugees from Hurricane Katrina, and from singer Emmylou Harris's Tennessee rescue.

Deep in the canyon country of Utah lies Dogtown, the largest no-kill animal sanctuary in the United States and the subject of this National Geographic series that shines a light on the facility's canine inhabitants and their dedicated caregivers. Included among the five episodes is one that focuses on the rehabilitation of four of the pups rescued from the home of Atlanta Falcons quarterback Michael Vick, who was convicted of dogfighting.

Visit the Best Friends Animal Sanctuary, which specializes in rehabilitating abused pets and where no animals are put to sleep. The fourth season of this National Geographic series features an obese Chihuahua and a shar-pei injured in a dog fight. The Best Friends vets also treat one of football star Michael Vick's abused pit bulls and care for a shepherd mix that was traumatized by the 2006 Lebanon War.