Chris helps a young family choose a mini-pig as a pet and must prepare them for the challenges of adopting one. Also, a pet is rushed to SASH with a swollen face. The Season 4 premiere.

Chris tries to save a lamb that has been adopted by a Dalmatian. Also: A 1-year-old pet is sick and his owners are worried he's been eating rocks from their backyard.

Chris helps a mini-pig who is obsessed with digging, and a dog suffers from dizziness. Also: a visit to a charity clinic for pets owned by the homeless and disadvantaged.

Chris has trouble treating little Gizmo's chronic ear infection; Shiver the Pomeranian needs help after being mauled by two large dogs.

Identical twins enlist Chris to save a sick chick with a swollen neck. In addition, a lethal funnel-web spider takes up residency at a family's home.

Chris heads to the country to oversee a vet clinic. Here, a team effort plays out to help a terrier at risk of losing her unborn puppies. Also: Two four-legged cops arrive at SASH to give blood.

Chris travels to various locations in Kenya to observe the work of a zookeeper trying to save endangered animals. Also, Chris treats an orphaned rhino, meets women who are saving wildlife and faces a giant predator.

Chris tries to help a dog who was born with a cleft palate. Also: A bird is treated after swallowing a mystery object.

Chris journeys to Thailand to work with wildlife crusader Edwin Wiek, who with his team cares for hundreds of homeless animals. Here, patients ranging from elephants to monkeys to a bear receive medical attention.

Chris helps a horse that has a lump growing on his eye. Also: an animal may be suffering from serious internal injuries.

A married couple prepare to share exciting news with their two fur babies.

Chris helps a mini-pig with digging issues. Also, a puppy arrives at SASH with a swollen face, and a dangerous funnel-web spider causes concern for a mother and her two daughters.

Dr. Chris tries to find a surrogate mother for a lion cub. At a reptile park, a large python has an odd lump on her back.

Dr. Chris heads to Australia's Halls Gap Zoo, where keepers are worried about a pregnant lemur whose left canine tooth has darkened. Chris also helps sheep with hoof issues at the zoo and, at SASH, a dog is treated after swallowing a sewing needle.

An inspirational 7-year-old girl with a brittle bone disease has a dog with dental issues. At SASH, it's suspected that three pups were bitten by deadly paralysis ticks. Also: a pooch with a skateboarding obsession.

A baby alpaca named Jersey is treated as brush fires rage outside the city. Also, a family is prepared to adopt two Great Dane puppies.

A prized cheetah at a local safari park has stopped eating and Dr. Chris is called out to investigate. Meanwhile, a young pet is accidentally injured by one of his teen owners.

Dr. Chris helps a kangaroo with a lump under its chin. Also: Deadly ticks impact several dogs.

While on a working holiday, Dr. Chris tries to solve a mystery medical condition involving Snoopy, a Jack Russell terrier. Chris also treats a baby parrot with a damaged leg.

A young cavoodle arrives with strict instructions for Dr. Chris from the tooth fairy. Also, a shorthaired pointer is treated for a hurt leg, and Tim tries to move a 10-foot-long alligator.

The theme is unusual pets, as Chris helps a young family choose a mini pig. Also: A Dalmatian adopts an orphaned lamb, but the baby's future is in doubt; and a dog has a skateboarding obsession.

Dr. Chris helps a micro-bat that is covered in a mysterious goo. Also: A lethargic puppy is treated; and a wild currawong is brought into the clinic with a wooden skewer through its wing.

A singing Dalmatian has lost his voice, and Dr. Chris fears the cause may be sinister. Also, a dangerous snake at a reptile park has a piece of scale lodged over its eye.

Dr. Chris helps a small dog with a large heart murmur. Also, a giant alligator named Elvis is treated.

A monster of a day for Dr. Chris involves treatment for a 17-foot-long croc with a wounded snout, plus the challenge of a 17-foot-long scrub python that's concerning a neighborhood.

A dog has dental issues. Also: A 6-year-old aspiring vet helps to diagnose her lethargic puppy.