Dr. Jeff reveals the cause behind a beloved senior dog's mysterious lump. A cat called Tigger is monitored for unusual eating habits. An owner learns the perils of purchasing her pup online after it becomes sickly, and Petra shows off her guinea pigs.

Dr. Jeff treats a skittish Savannah cat with an unusual condition; Dr. Amy helps a beloved dog who was injured chasing a coyote; the team tries to find the owners of a dog rescued on the highway.

Dr. Jeff performs surgeries with the help of two vet students. A tribe of fainting goats is seen by Dr. Jeff and Hector, while Dr. Amy discovers why a cute and cuddly kitten is teary-eyed.

A daredevil dog is saved by Dr. Jeff after it jumped from a fast-moving car on the highway. Dr. Don solves a medical mystery, while a couple's mischievous rescue guinea pigs cause a stir.

From a stray dog saved by life-changing surgery to a pair of tortoises rehabbed after years of neglect, rescued animals get not just medical care but a second chance at life.

Dr. Jeff and vet tech Ben head to a remote island in Panama to help with the pet population. A feisty terrier loses the battle against a German shepherd pup, while a sickly Sphynx kitten has been relinquished and needs serious medical attention.

Dr. Jeff helps a beloved German Shepherd walk again; the team tries to rescue a scared dog on the loose outside the clinic; Dr. Don must move fast when a family cat eats poison; Dr. Jeff and Hector head for the mountains to help two rescued camels.

Dr. Jeff comes to the rescue of an injured raccoon found in an illegal trap; Dr. Jeff is thrown by a medical mystery when Gordo the chihuahua comes in with a fever; Bob the black lab suffers a deep wound after protecting his owner.

Dr. Jeff must perform a rare surgery to save a pup with a deadly illness; a young pregnant woman counts on Dr. Amy to help her badly injured cat; Dr. Jeff and the team head to a wildlife sanctuary to treat a pride of lions.

Dr. Jeff and his team head to a remote town to provide low-cost pet care; Dr. Petra performs life-saving surgery on a basset hound hit by a car; a cat with plenty of attitude needs Dr. Amy to treat his mysterious wound.

Dr. Jeff tackles challenging surgeries on a pit bull with a broken leg and a feisty kitten's torn lower lip; Dr. Amy treats a dog that's acting sickly after a camping trip; Dr. Don handles a bladder stone removal on vet tech Christine's family pet.

Dr. Jeff and his team lend a hand at Lakota Reservation in South Dakota. Back at the clinic, Amy debates emergency surgery for a French bulldog who ate his favorite toy, while Susan finds the perfect forever home for a lovable canine called Koda.

Dr. Jeff and Hector help 40 miniature Australian shepherds rescued from a puppy mill; Vet tech Christine turns to Dr. Jeff when her elderly Chihuahua has trouble walking; Dr. Jeff is called out to treat an alpaca with a serious infection.

Dr. Jeff performs emergency surgery on a pit bull and makes a surprising discovery. Dr. Baier treats a goat kicked by a horse. A couple drives all night hoping the team can fix their dog's shattered leg. And an injured ostrich is taken care of.

An overweight cat with kidney disease struggles to survive; a dog is hit by a car while its owners are out of the country.

A high-risk surgery is attempted to save the life of a beloved puppy; a 3-day-old orphaned kitten needs Dr. Baier's help to stay alive; a puppy is given a fifty-fifty chance of survival after it's rushed to the clinic with a deadly virus.

Dr. Jeff and Petra train new vets at a wildlife sanctuary in Mexico. While there, they spay an endangered jaguar, and help an injured osprey. At the clinic, a Great Dane comes in with wounds after battling an air conditioner.

Dr. Jeff discovers a large mass on a loveable canine. Dr. Don helps Kelly the vet tech with her dog's sun-damaged nose, while Dr. Baier and Hector join forces to treat wild bison.

Dr. Jeff attempts to diagnose a dog's devastating mystery illness; vet tech Hector's daughter is tasked with caring for a mother dog and her seven pups; Dr. Baier volunteers to help find new homes for rescued rabbits.

In the premiere of this series following the work of Denver veterinarian Jeff Young and his staff at Planned Pethood Plus, a dog goes into cardiac arrest shortly after arriving at the clinic.

Dr. Jeff performs a surgery he's never done before on a dog with labored breathing. A senior canine was abandoned by his owner and the staff must find him a new forever home, while neglected ornate box turtles are saved by Dr. Baier.

Dr. Jeff preps a Shiba Inu for surgery after she's struck by a car, but test results reveal a grim reality. Dr. Baier performs his first-ever wild goose operation, and an obese Yorkshire Terrier struggling to walk begins a strict weight-loss plan.

Dr. Jeff performs surgery on Slash, a dog who can't keep his food down and weighs 20 pounds less than he should; Winter the cat has a bloody wound on his side.

Dr. Jeff treats a dog with a mysterious injury. Dr. Petra helps vet tech Jes' Dalmatian after it eats something toxic. A neglected turtle needs a new home, and the team falls in love with a litter of stray kittens

Jeff and his team head to a remote town where they encounter an animal they never expected to see in Colorado; in Denver, a dog is rushed into the clinic after jumping out of a moving truck; Dr. Amy treats a kitten with a mysterious injury.

Khaleesi, the golden retriever pup undergoes a life-saving procedure; vet tech Blaire faces heartbreak over her beloved senior dog, Zula; during the global pandemic, Dr. Jeff and Hector ensure pets from an elderly community receive proper care.

Dr. Jeff helps a remote town in Colorado overwhelmed by feral cats; a staff member's beloved dog needs emergency surgery; Dr. Baier gives some injured birds of prey a second chance; Jeff races to save the life of a family's precious Chihuahua.

Dr. Jeff helps a dog with a serious illness; Mel and her daughter rescue a baby squirrel; Dr. Jeff and Dr. Petra team up to save a beloved cat hit by a car; Dr. Baier gives a rabbit owner a surprise; a tiny dog with a big spirit needs a home.

When Dr. Jeff examines a beloved Weimaraner who has stopped eating, he makes a surprising discovery; Dr. Baier investigates the cause of a pet rabbit's mysterious fur loss; a servicewoman asks Dr. Jeff for help with her Pit Bull's injured leg.

Dr. Jeff and his team lend a hand at National Mill Dog Rescue and are eager to find Ginger the Pomeranian a forever home. A dog who loves to swallow household objects must undergo emergency surgery, and Jimmy the gecko gives Dr. Baier a surprise.

When two Chihuahuas are found abandoned in a storm drain, Dr. Jeff and his team will do whatever it takes to help them. Then Dr. Jeff makes a surprising discovery when a cat's bizarre eating habits put her life in danger.

A dog is lost during a windstorm; Dr. Baier treats a small bird that has a big personality; a paralyzed dog is abandoned; an alligator is injured in a fight.

When a beloved dog is hit by a car, Dr. Jeff battles to save his shattered leg. Then Dr. Amy takes on a new challenge treating 7 bad-tempered chickens. And a tiny kitten found unconscious at a construction site unites everyone in a fight to save it.

When a puppy is kicked in the head by a donkey, Dr. Jeff is her only hope. Later, Jeff goes fishing for a hook stuck in a beagle's throat, and Dr. Amy helps a cat unable to walk. And, Dr. Nichols gets caught up in a wrestling match with an alpaca.

Denver's busiest vet is back, with more patients than ever before. Dr. Jeff fights to help a dog walk again. Dr. Amy operates on a cat with a strange appetite. And the team heads out to a sanctuary to help an injured tiger.

In the Season 4 premiere, a black Lab swallows toxic metal; a lost cat is found after a one-and-a-half year absence, but has a mysterious injury; and a tiny dog has a big, life-threatening problem.

A litter of kittens is rescued; a dog is struck by a car.

A girl hopes Dr. Jeff can save her puppy from a deadly virus; a stray cat with a life-threatening injury; Dr. Jeff must gain the trust of rescued wolves to help an ailing member of the pack.

Dr. Jeff makes a shocking discovery when a rescued street pup named Kova comes in with a severely injured leg; little Fonda needs to find a forever home after being thrown from a car; Dr. Jeff builds his beloved dog, Fred, his very own swimming pool.

Dr. Jeff operates on a dog rushed to the clinic after a growth on her neck ruptures. A family brings in their rabbit with mysterious growths on her side. And the team performs a risky procedure on a pair of rescued miniature donkeys.

Dr. Baier races to save a young couple's cat after it is hit by a truck. Dr. Don operates on a basset hound with an unusual appetite. And, Dr. Jeff and his team head to Mexico to provide desperately needed vet care to the community.

Jeff performs surgery on a pig for the first time; a dog is foaming at the mouth and requires immediate attention; Lindsay gets a surprise when she treats a sick goldendoodle.