Dr. Baier pays a visit to the Greenwood Wildlife Rehabilitation Center at the foot of the Rockies to help animals injured by a Denver hailstorm.

Dr. Don stitches up a cat with a serious wound.

Dr. Jeff helps an elderly Romanian man and his pack of stray dogs by fixing them at a local clinic.

A rescued Romanian puppy named Lucky goes on his first walk.

Chica, a ball headed python, needs Dr. B's help after some irregular shedding.

Dr. Jeff performs a tricky surgery on Stella, an 11-week-old Australian Shepherd, whose esophagus is being constricted by a blood vessel.

Elmer, a 6-month-old Nigerian midget goat, gets an X-Ray after being kicked in the chest by a horse.

Dr. Jeff pulls a mango seed out of a dog's colon by pushing it down the intestinal tract.

Dr. Jeff and his staff perform a teeth cleaning on an overweight bear.

Melody and Dr. Andres help a family whose backyard is overrun with stray cats during a trip to Mexico.

Dr. Jeff makes a tough decision to amputate a cat's leg after it sustained multiple fractures in an outdoor accident.

Stella Blue and her owner Jeff love the outdoors, but a snowboarding accident could be the end of the dog's adventuring days.

Dr. Jeff and his staff help Joyce adjust to life outside the puppy mill where she was kept in confinement for 12 years.

Dr. Jeff treats Lily, a 12-year-old puppy mill rescue with skin allergies. Lily, who has lived in a wire cage her entire life, gets to sleep in a bed for the first time.

Dr. Don removes a large mammary tumor from Faye, an 11-year-old miniature Maltese.

Dr. Jeff performs a tricky surgery on an abandoned black lab puppy named John Doe with a broken leg.

Zoe's owners bring her into Planned Pethood after receiving news that the surgery that will mend the pup's shattered leg could cost the family upwards of $4,000.

Dr. Baier has spent most of his career with exotic animals. This surgery marks his very first feline leg amputation.

Stella Blue and her owner Jeff love the outdoors, but a snowboarding accident could be the end of the dog's adventuring days.

Cats are creatures of habit. If they’re acting off, chances are they might need to visit the vet.

(Warning: Graphic Video) Minnie the dog has been pretty ill so her owners bring her to Planned Pethood Plus. The team diagnose her with bladder stones and jump into surgery ASAP!

Mugsy is brought into the clinic with severely low blood sugar, a condition experienced frequently by small dogs who don't eat frequently throughout the day.

Dr. Jeff and Hector head upstate volunteer at W.O.L.F Sanctuary. They’re giving the animals vaccinations, but one new rescue is a bit wilder than the others.

Don’t adopt an active dog if you work 8-10 hours a day and are rarely home.

Dr. Jeff makes a tough decision to amputate a cat's leg after it sustained multiple fractures in an outdoor accident.

Shorty, the six-year old Chihuahua, was hit by a car driving 25 mph and is quickly losing consciousness.

(Warning: Graphic Video) When Champ the dog swallows a baby pacifier, Dr. Jeff acts fast to remove the object from his intestines. Watch the mastery of his surgical technique. It's FASCINATING, but a little gross. You've been warned.

Dr. Nichols and Hector travel 40 miles from Denver to a sanctuary that is home to hundreds of rescued bears and big cats to give the female lions birth control shots.

Dr. Don calls in Dr. Jeff for help with a cat who is back at the clinic with more urinary tract issues.

An Eskimo dog comes into Planned Pethood with a broken jaw, the result of a chronic dental infection.

Melody and Dr. Andres help a family whose backyard is overrun with stray cats during a trip to Mexico.

OK for the record, these are SURGICAL staples - but surgical or otherwise, DO NOT PUT A STAPLEGUN TO YOUR FACE. EVER. NEVER. EVER. ... OK?