James and Lena find a new place to put their rescues; Tanell stresses over her assessment.

The kennels are filled and James must find a place for his rescues.

James plans a contest to raise funds for an animal sanctuary; chaos ensues.

James celebrates his birthday at Coney Island; Lena has a surprise; a messy recovery.

James prepares his rescues for an adopt-a-thon; a litter of kittens are in trouble.

James takes Princess to the vet, goes to his high school reunion and tries to rescue a feral cat and her kittens.

James must find a home for a Peking duck; Lena prepares for her mother's surprise party.

A pup in need interrupts a trip to upstate New York; Tanell's grooming abilities are tested.

Old friend "Fat George" helps with a late night rescue; new groomer Tanell shows up for her first day.

Former mob enforcer James Giuliani has found a new calling: dog grooming and animal rescuing.

The challenges never stop for world-famous dog behaviorist Cesar Millan. In this series, not only does Cesar help dog owners with simple take-home tips for problem pooches, he and his son Andre hit the road to honor and support the nation's many heroes in the pet industry. On an RV journey that spans from Philadelphia to Los Angeles, the hosts uncover inspirational K-9 stories and connect with organizations that are rescuing and rehabilitating dogs. No pup and pet-loving person is spared as the Milans profile groups helping veterans and their service dogs, community-run animal rescue teams training K-9 police dogs, and therapy dogs that help children with autism.

Dr. Jan Pol has been a practicing veterinarian for more than half his life. In 1981 he and his wife, Diane, opened a vet business out of their home, and over the years it has grown to service more than 19,000 clients. Set in Central Michigan's farm country, this reality series follows the work done at Pol Veterinary Services. Specializing in large farm animals, Dr. Pol treats horses, pigs, cows, sheep, alpacas, goats, chickens and even an occasional reindeer. The program also features Dr. Brenda Grettenberger, who has worked with Dr. Pol since 1992.

Amanda Giese eased her troubled childhood by connecting with animals. They were her best friends, her "saving grace," she says. That connection continued into adulthood, leading her to start a nonprofit called Panda Paws Rescue, whose mission is to end homelessness, abuse and neglect of all animals. Alongside Amanda's kids, Jade and Beast, and partner Gary, the family cares for animals -- primarily dogs that others have given up on -- in need and helps them find loving forever homes. Those efforts are featured on hourlong episodes, including a large-scale rescue mission to save the lives of dozens of animals that have major medical or special needs.

The "Dog Whisperer" is back, this time to answer emergency calls from communities terrorized by unruly canines. Renowned dog behavior authority Cesar Millan is beckoned by the relatives, friends, neighbors or co-workers of someone whose four-legged menace has turned lives upside down. In each episode, Millan meets with the whistle-blowers in a briefing session, then he evaluates both the pets and the owners through impromptu visits to the neighborhood locations to see dogs display their doggone behavior and watch how owners react. After rehabilitation programs are set up, Cesar uses surveillance cameras to track progress and ensure a lasting solution. The final test comes when all parties gather together in the community -- owners equipped with the knowledge and tools Cesar has provided, and dogs ready to prove they did learn new tricks.

Shelter dogs are given new homes and new leases on life in "Rescue Dog to Super Dog." The pooches are paired with people who struggle with mental, physical or neurological disabilities and trained to be able to help lead their new owners through their everyday lives. Dog trainers Nate Schoemer and Laura London search kennels and look for suitable strays that they can transform into helper dogs to aid humans with sleep disorders and Tourette syndrome, among many other ailments.

One of the largest and most popular zoos in the U.S., Ohio's renowned Columbus Zoo and Aquarium and its conservation park The Wilds, houses more than 10,000 animals on 12,000 acres. It's also the part-time home of beloved wildlife guru Jack Hanna, the zoo's director emeritus. Now, Nat Geo Wild is taking viewers inside the grounds and allowing them to experience what visitors can't: compelling, heartwarming stories, and behind-the-scenes moments and adventures. "Secrets of the Zoo" introduces both the animals and the legions of workers who create unforgettable connections between people and wildlife.