Andy Casagrande and Jonathan Werry head back to the Isle of Jaws after last year's discovery. What are all the male sharks doing there, and where are all the females?

Preparations for winter continue and focus centres on finding food. Heimo seeks out caribou meat, while Tyler and Ashley score big game.

A miniature schnauzer with a suspected liver shunt needs complicated and costly surgery. Plus, Amanda prepares a blind puppy for his new home.

Go literally inside a shark's jaws as cameras go onto and into the most fearsome predator in the seas to show exactly what it is like to be at the business end of a shark.

Andy Casagrande and Jonathan Werry head back to the Isle of Jaws after last year's discovery. What are all the male sharks doing there, and where are all the females?

Dr. Jeff treats a dog after it jumped from a fast-moving car on the highway. Plus, a couple of rescue guinea pigs cause a stir around the office.

Wildlife biologist, Forrest Gallante, scours the globe using cutting edge technology on his mission to find species that the world has stopped looking for.

A miniature schnauzer with a suspected liver shunt needs complicated and costly surgery. Plus, Amanda prepares a blind puppy for his new home.

Jackson helps cat Good Kitty stand up to her two feline attackers. He also meets a couple fed up with their cats, Tiki and Marley, eating everything in sight.

Chris experiences his first rescue and saves two goats in serious need of medical attention. Plus, Joey the calf recovers from a series of surgeries.

Dr. Jeff treats a dog after it jumped from a fast-moving car on the highway. Plus, a couple of rescue guinea pigs cause a stir around the office.

Wildlife biologist, Forrest Gallante, scours the globe using cutting edge technology on his mission to find species that the world has stopped looking for.

A miniature schnauzer with a suspected liver shunt needs complicated and costly surgery. Plus, Amanda prepares a blind puppy for his new home.

As Spring arrives in Michigan, the Barn Sanctuary prepares to open for all animals. Plus, Dan and Kelly come to the rescue of a lamb in desperate need of medical care.

Shelter volunteers drive from Kansas hoping the team can save a tiny rescue dog. Plus, Dr. Jeff's cousin asks for the vets to visit Tennessee to provide free care.

On one of his most audacious and exciting expeditions to date, Forrest travels to the remote Galapagos Islands in search of the fabled Fernandina tortoise.

After a whirlwind rescue mission in Hawaii, Amanda brings home Iceland, a blind foster puppy, and Egypt, a shy and fearful shelter dog.

After devouring all his tankmate's food, a hungry sea turtle finds a space to eat in peace. Plus, two beluga whales are welcomed to their new home.

A rescued sea otter must build his independence after becoming too attached to his best friend. And, over 50 African penguins are moved for spring cleaning.

Dan travels to Chicago to give cockfighting roosters a second chance. Meanwhile, the crew worry whether an unruly cow will be welcomed by the rest of the herd.

An adventurous puppy falls off a trampoline, can Dr. Jeff and Petra mend its broken leg? Meanwhile, Susan takes care of a litter of kittens and their mum.

The Southern Rocky mountain wolf hasn't been seen since the '40s, but cattle attacks suggest it exists. Forrest treks into the Sierras to find out.

Amanda and her kids travel to Hawaii where they meet dogs perfect for Panda Paws. She comes home with a blind puppy and a senior dog in need of some help.

The Lucas Lagoons crew faces the unique challenge of building a Rocky Mountain-style lagoon for a family living in the Florida wetlands.

In Detroit, a filthy neighbour turns a dream apartment into a nightmare. In California, a mother battles to protect her special needs son from venomous snakes.

A man bangs his head and fights a rare medical mystery. A wound in a boy's knee hosts an uninvited guest, and a man unwittingly feeds his own killer.

It's the dead of winter and the Last Alaskans move through the icy Arctic. Heimo still needs a moose, while the Seldens embark on the next part of their journey.

A baby nearly dies at home, a man has worms crawling throughout his lungs, and a female boxer gets blindsided by a rare infection.

Rob and Elle investigate a claim about dogs on a hot roof. Meanwhile Brian and Face help a woman whose neighbour is provoking her dog.