Mike heads to the edge of the Arctic Circle on the northeast side of Canada's Baffin Island to find one of the most enigmatic species of shark - the Greenland shark.

Mike learns how to make high quality bird food in Payette, Idaho, and then milks spiders for their venom in Arizona.

California restaurant Mel's Drive In wants a tank for their new location in Santa Monica; the owners want a nostalgic feel and a ton of insert pieces that represent Mel's storied history while pointing to the restaurant's future.

Brett's newest business venture is Donut Mania, and Wayde and the whole team want to congratulate him with a surprise fish tank.

A stray dog arrives at RAPS in rough shape and the team uncovers his surprising story; William, a street-wise cat, amazes Dr. Maldonado with his resilience; Odin, a German Eurasier, heads into surgery; Karen is handed a huge picking challenge.

A black cat with breathing problems gives the vets a run for their money; Bucky, a senior Labrador, takes a frightening turn during surgery; Lucy the Hedgehog surprises her owner with undetected health issues.

Antonio transforms an overgrown backyard into a beach-themed oasis for humans and rescued rabbits, complete with predator-proof enclosures.

Antonio goes hog wild and designs the ultimate piggy paradise with a new pig house, a mud pit, space to run and an activity wall to keep Mr. Pickles happy.

A chicken is rushed to Dr. Ross after being attacked by a coyote; a Great Dane mix has a seizure; Dr. Lavigne uncovers multiple issues; a surprise serenade at the clinic musically inspires Dr. Blue.

Orangutan Malu destroys his playroom; an elderly horse must undergo a dangerous procedure; keepers must decide if it's time to say goodbye to one of the zoo's giraffes.

After historical wildfires rip through Australia, the Irwins race to rescue as many animals as possible; Robert and Terri jump in to help the severely injured koala population; Bindi and the wildlife hospital rescue hundreds of baby flying foxes.

Hurricane Katrina survivor finally, after ten years, has a chance at getting a forever home; Louise and Matt find much more than the loose pit bull they were looking for.

Local shelter fights Tia over the fate of a scared and violent pit bull; local couple hopes to find friend for the family dog; after long recovery, dog rescued from near death has chance at forever home in Boston.

Jeremy heads to Australia to investigate a terrifying underwater attack by a six-foot beast in a remote Outback river.

A recent sighting in South Africa of a half-human, half-fish beast draws Jeremy Wade into the story of a creature with ancient origins and a fearsome reputation.

After numerous credible eyewitness accounts of the Tasmanian Tiger in Australia, James Cook University has researchers on the move; Forrest joins their study before heading deep into the Cape York Peninsula.

Madagascar's Pachylemurs were red, furry giants, nearly the size of great apes; recently discovered remains disprove that they went extinct 1,000 years ago; Forrest tries to prove the giant species still lives.

Forrest teams up with a specialist in Newfoundland in search of a predator that was declared extinct in 1930; the duo meets with a hunter that shot what is believed to be a wolf and uncovers evidence that suggests the species could be alive.

On a family trip to Pattaya, Thailand, Helen Costigan attends an elephant show when one of the massive beasts turns deadly; golf ball recovery specialist Scott Lahodik is diving in a Florida lake when he's attacked by a vicious alligator.

Bob Legasa is hunting in Montana and what he thinks is a bluff charge from a grizzly bear is, in fact, a near-lethal attack; while canoeing in Zimbabwe, Kristen Yaldor is thrown into the water and finds herself in the jaws of a hippopotamus.

During an archery hunt in Cranbrook, British Columbia, Chad Dueck comes face-to-face with a mother grizzly bear; in Tracy, Calif., Walt Dean King is savagely attacked by a Brahma Bull roaming his neighborhood.

While vacationing in South Africa, Peter Knottenbelt suddenly finds himself in the jaws of a massive crocodile; in Nova Scotia, Meg Doyle is walking her beloved dog when they're suddenly ambushed by a pair of angry raccoons.

On a family trip to Pattaya, Thailand, Helen Costigan attends an elephant show when one of the massive beasts turns deadly; golf ball recovery specialist Scott Lahodik is diving in a Florida lake when he's attacked by a vicious alligator.

Bob Legasa is hunting in Montana and what he thinks is a bluff charge from a grizzly bear is, in fact, a near-lethal attack; while canoeing in Zimbabwe, Kristen Yaldor is thrown into the water and finds herself in the jaws of a hippopotamus.

During an archery hunt in Cranbrook, British Columbia, Chad Dueck comes face-to-face with a mother grizzly bear; in Tracy, Calif., Walt Dean King is savagely attacked by a Brahma Bull roaming his neighborhood.

While vacationing in South Africa, Peter Knottenbelt suddenly finds himself in the jaws of a massive crocodile; in Nova Scotia, Meg Doyle is walking her beloved dog when they're suddenly ambushed by a pair of angry raccoons.

A recent sighting in South Africa of a half-human, half-fish beast draws Jeremy Wade into the story of a creature with ancient origins and a fearsome reputation.

After numerous credible eyewitness accounts of the Tasmanian Tiger in Australia, James Cook University has researchers on the move; Forrest joins their study before heading deep into the Cape York Peninsula.

Dino the dog's anxiety level has the owner sacrificing her own mental health treatments; another dog, Dexter, is becoming increasingly nippy and confused; the final push at Bin City needs to reap big rewards.

Treating their dog's allergy plunges a young couple deep into debt; a hognose snake is reluctant to eat; early plans for a dog sanctuary are riding on a successful, well attended auction.

Antonio builds the ultimate barn with all the modern comforts for two rescued miniature horses that insist on sleeping in their owner's bedroom.

Antonio transforms two Nigerian dwarf goats' space into the ultimate goat playground, complete with a climbing tower, observation deck, and an easy-to-clean three-story house.

Dr. Lavigne performs a doggy nose job to help a pug with bad breathing problems; Dr. Blue urgently treats Hardtime, a dog who's facing hard times battling heart disease; an opossum with a traumatic injury needs Dr. Ross's help.

A routine health check takes a frightening turn for lion brothers Lwazi and Ato; keepers await to see if otter couple Odie and Paula are expecting; a gorilla named Kanzi must prove she can receive vital medical care.

Complications arise after the birth of Talbert the giraffe; Robert rescues a black swan entangled in fishing line; Bindi and Chandler plan for Kingston the rhino's first birthday.

Sugar cares for blind pit bull, ravaged by other dogs; Pittsburgh couple falls in love with Baker Red; Earl cares for pup when homeless owner goes to rehab.

Tania, inspired by Snickers and Brandi, leads effort to find forever homes for their favorite dogs, and vows this to be the last Christmas they spend in shelters; photographer comes to Villalobos to shoot portraits of each dog for potential adopters.

Pete pushes his design skills to create an owl-inspired tree house library in Charlotte, N.C.; evoking the face of the bird and using all sorts of curves, including rounded walls and semi-circle bookcases, the crew builds a one-of-a-kind masterpiece.

Pete treks to New York's Catskill Mountains to build his first glass house in the sky; piecing materials together like a puzzle, Pete uses his clients' collection of 50 vintage windows to construct an elegant tree house incased by walls of glass.

Pete and his gang ride out to the Lone Star State to build a double-decker hideout in Texas Hill Country; Pete creates rustic perfection in six live oak trees with a saloon-style first floor for sippin' sarsaparilla and a glass floor for views below.

Pete descends upon western Washington to make a tree house for action and relaxation; with a 55-foot-long bouncy-bridge entryway into a 20-foot-high structure and a zip line that travels through the forest, this tree house generates non-stop thrills.

Two retirees get a retreat on their 100-acre Wisconsin farm; Pete builds a barnlike birdhouse with three separate pods - an art studio, an office and a lounge - complete with a screened-in porch and a deck overlooking their stable of alpacas.

A couple wants a treehouse inspired by a children's book with a grown-up twist, and at the same time, Pete and the team build a whimsical Tudor-style theatre treehouse.

Pete builds an outside-in tree house and installs a sauna in the trees.

Pete partners up in Utopia, Texas, for his first joint venture: a tree house bed-and-breakfast built for romance; a French-inspired chapel of love has a 25-foot steeple and the biggest bathroom Pete has built to date.

A couple wants a treehouse inspired by a children's book with a grown-up twist, and at the same time, Pete and the team build a whimsical Tudor-style theatre treehouse.

Pete builds an outside-in tree house and installs a sauna in the trees.

Pete partners up in Utopia, Texas, for his first joint venture: a tree house bed-and-breakfast built for romance; a French-inspired chapel of love has a 25-foot steeple and the biggest bathroom Pete has built to date.

Pete treks to New York's Catskill Mountains to build his first glass house in the sky; piecing materials together like a puzzle, Pete uses his clients' collection of 50 vintage windows to construct an elegant tree house incased by walls of glass.

Pete and his gang ride out to the Lone Star State to build a double-decker hideout in Texas Hill Country; Pete creates rustic perfection in six live oak trees with a saloon-style first floor for sippin' sarsaparilla and a glass floor for views below.

In Singapore's Marina Bay, royal otter clans battle for territory and survival; matriarch Queen Olivia fights to keep her crown and protect her family from Princess Eva and the Lost Army while her daughter plots a betrayal.

Otter Queen Olivia must make a life-changing decision when she discovers the consequences of her daughter's reckless betrayal; Eva and her Lost Army plan their revenge; the son of Empress White Whiskers returns home.

Jeremy Wade heads to the Mekong River in Thailand in search of the giant freshwater stingray.

Jeremy fishes in the Alaskan wilderness and searches for a lake monster of native legend.

Jeremy explores the legends and mystery surrounding the Congo River in central Africa.

Jeremy Wade searches for a two-hundred year old legend.

Jeremy Wade travels to Japan, searching for two legendary monsters.

Forrest is in Mozambique to track down a bull elephant that has been destroying local villages.

Forrest travels to the pacific northwest with zoologist and wife Jessica on a mission to uncover the truth about the centuries-old myth of the lake monster.

Dr. Dee flies to a remote clinic in Healy; tumors found on dog getting spayed; Dr. Dee readies Nugget the Bull to breed; Dr. Terry is surprised while giving six kittens their shots.

Nature wages war when Dr. Dee and Ken decide to rescue six baby owls after an eagle kills their parents; Dr. Dee's dog donates blood to a lab with auto-immune disease; cat receives stem cell therapy.

Dr. Dee performs surgery on a dog for three-hours straight to save its life; diagnosis is changed on a dog with seizures; Dr. Dee and Ken trek to Yakutat, Alaska where they haven't seen a veterinarian in two years.

A black Lab swallows toxic metal; a lost cat found with a mysterious injury; a tiny dog struggles to deliver a large puppy.

The team heads to Mexico to help desperate owners and their pets; a teenage boy and his sister worry about their sick dog; a remote village has never seen a vet.

Julia and her snake catcher colleague, Stuart McKenzie, deal with a large python hanging in a treetop. A mother discovers a snake while playing hide and seek with her children. Plus, Julia has acquired a tarantula as a new pet to overcome her fears.

Julia receives a call from a worried family who have discovered a very dangerous eastern brown snake under their patio. Together with two scientists, Julia wants to catch and milk the world's third most venomous snake, the dreaded coastal taipan.

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 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.

Julia and her snake catcher colleague, Stuart McKenzie, deal with a large python hanging in a treetop. A mother discovers a snake while playing hide and seek with her children. Plus, Julia has acquired a tarantula as a new pet to overcome her fears.

Julia receives a call from a worried family who have discovered a very dangerous eastern brown snake under their patio. Together with two scientists, Julia wants to catch and milk the world's third most venomous snake, the dreaded coastal taipan.

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 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.

Nature wages war when Dr. Dee and Ken decide to rescue six baby owls after an eagle kills their parents; Dr. Dee's dog donates blood to a lab with auto-immune disease; cat receives stem cell therapy.

Dr. Dee performs surgery on a dog for three-hours straight to save its life; diagnosis is changed on a dog with seizures; Dr. Dee and Ken trek to Yakutat, Alaska where they haven't seen a veterinarian in two years.

A 150-foot long super snake known as the Yacumama attacks and kills people in Peru; the villagers fear it so much they try to blow up the creature with dynamite.

Investigating a bigfoot-like creature with superhuman strength reported in the foothills of the Andes; Mungo hears chilling yet conflicting stories on the Ucumar: some believe the creature is a bear, while others think it's more of a yeti.

Although threatened in their native range, mountain-dwelling tahr thrive in New Zealand; Dan Cabela investigates the challenges of managing a non-native species and balancing ecosystem protection with the economic benefit of hunters harvesting tahr.

In 1961, Dick Cabela founded Cabela's, unaware it would become a leading outfitting store. Now, his son Dan Cabela is on a quest to explore the hard truths of conservation, detailing the roles of hunting and wildlife utilization in modern conservation.

Wildlife agents rescue a black bear that's been hit on a highway; an illegal pig-slaughter operation is investigated.

The Miami-Dade animal services unit investigates a man who may have beaten a cat.

Animal cruelty investigators find two adopted dogs wandering the city streets in need of help.

Animal cruelty investigators have a difficult job on their hands when a hoarder deceives them; heartbreak results when investigator Kathy Labrada fights to save a desperately ill dog rejected by its owners.

A wildlife agent swims in alligator-infested waters to help save an injured alligator; a dog fights for its life after being hit by a car.

A dramatic rescue to save a manatee's flipper uncovers a secret; on the hunt for a gang of poachers.

The wardens are are on full alert as the tourist season begins; crowded campground is being terrorized by a fox; rowdy partygoer gets a little irresponsible on an ATV.

The animals all come out of the woodwork at the start of spring; a routine littering summons morphs into a rabid pit-bull encounter; new evidence emerges with the spring thaw on an old deer-poaching case.

The warden's responsibilities change with the season; Sgt. Spahr helps a wounded owl, while Warden Stevens leads a team on a night rescue mission to find a distressed hiker.

Aggressive hippos raised by the cocaine kingpin Pablo Escobar have escaped his abandoned compound in Colombia, becoming a dangerous and deadly invasive species; wildlife biologist Forrest Galante embarks upon a plan to stop them.

In a methamphetamine hotspot, drugs seep into local waterways, creating aggressive alligators; wildlife biologist Forrest Galante investigates the effects of meth on these reptiles and attempts to capture and rehabilitate a meth gator.

A late-night encounter with a beer-hunting bear sparks a cross-country investigation; wildlife biologist Forrest Galante tracks break-ins and uncovers a strange new trend, bears invading homes to chug booze and devour marijuana edibles.

Officers safeguard waterfowl, patrol ice fishers and snowmobilers; they also monitor off-road vehicle activity; the Department of Natural Resources relocates a historic lakeside building from an eroding bluff.

The lives of men and women who are making the Michigan wilderness and landscape a safer place for not only animals, but humans alike.

Officers use a deer decoy to catch trespassers, seize illegally imported deer at the border during the busy hunting season, and patrol lakes to ensure safe boating practices. Follow Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

A late-night encounter with a beer-hunting bear sparks a cross-country investigation; wildlife biologist Forrest Galante tracks break-ins and uncovers a strange new trend, bears invading homes to chug booze and devour marijuana edibles.

Officers safeguard waterfowl, patrol ice fishers and snowmobilers; they also monitor off-road vehicle activity; the Department of Natural Resources relocates a historic lakeside building from an eroding bluff.

The lives of men and women who are making the Michigan wilderness and landscape a safer place for not only animals, but humans alike.

Officers use a deer decoy to catch trespassers, seize illegally imported deer at the border during the busy hunting season, and patrol lakes to ensure safe boating practices. Follow Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

The animals all come out of the woodwork at the start of spring; a routine littering summons morphs into a rabid pit-bull encounter; new evidence emerges with the spring thaw on an old deer-poaching case.

The warden's responsibilities change with the season; Sgt. Spahr helps a wounded owl, while Warden Stevens leads a team on a night rescue mission to find a distressed hiker.

Neil takes the final steps toward making a town-wide electrical grid; Jeremy calls an emergency meeting to stop Neil's plans.

The power grid causes a ruckus at the town meeting; Jeremy considers whether McCarthy is worth fighting for; a showdown approaches.

The residents choose sides to draw visitors to the frontier town; when wolves begin stalking the streets, the locals must unite.

Winter threatens starvation for the locals, who must hunt for big game; the richest landowner begins a plan to open the frontier.

The hidden city is within reach, but the locals will need to help; temperatures drop, threatening ranchers; an emergency meeting is called.

McCarthy locals join forces to survive wolf attacks and starvation; residents begin to turn on each other at the Golden Saloon.

The Brown family makes the most of the long summer days in Alaska; a lumber shortage and an injury threatens to split the family apart.

Following Ami's injury, the family must work harder to stay on track with preparations; Birdie, Gabe and Bear search for deer; Bear steps up as hunt leader.

Browntown is halted due to an emergency; Billy makes an unexpected choice; Matt steps up to take his role more seriously.

Matt, Bam, Bear, and Gabe head out on their first-ever hauling job without their father, and it's anything but smooth sailing; Bird, Rain and Noah do their best to keep their homestead stable.

The Browns face turbulent weather as they try to accomplish a haul to Port Alexander at the very edge of Southeast Alaska and the open ocean; the Integrity shows it's age as problems arise and the Browns are left stranded in the middle of the water.

The four eldest Brown brothers prepare for a second solo mission with hopes of redeeming themselves; visitors arrive in Browntown.

Matt, Bam, Bear and Gabe feel the strain of making deliveries in harsh conditions; a decision that will change the lives of the wolf pack is made.

A happy homecoming for the Brown family that costs valuable time, and the lack of a working skiff, may leave a highly risky haul as the only possible remedy.

Noah stays behind to continue repairs to Browntown; the rest of the wolf pack embark on their riskiest hull yet with the aim of securing the skiff they need.

Patriarch Billy seizes an opportunity to tie up loose ends, strengthen his ties with the bush, and keep the wolf pack close with a family visit to Excursion Inlet.

An early spring provides an opportunity for the family of nine to address unfinished business; a visitor from Billy's distant past could undermine the future of Browntown.

The mayor of the island of Hoonah makes a surprise visit that could change the face of Browntown; the family rallies around Gabe when an opportunity comes with high risks.

Noah stays behind to continue repairs to Browntown; the rest of the wolf pack embark on their riskiest hull yet with the aim of securing the skiff they need.

Patriarch Billy seizes an opportunity to tie up loose ends, strengthen his ties with the bush, and keep the wolf pack close with a family visit to Excursion Inlet.

An early spring provides an opportunity for the family of nine to address unfinished business; a visitor from Billy's distant past could undermine the future of Browntown.

The mayor of the island of Hoonah makes a surprise visit that could change the face of Browntown; the family rallies around Gabe when an opportunity comes with high risks.

The Browns face turbulent weather as they try to accomplish a haul to Port Alexander at the very edge of Southeast Alaska and the open ocean; the Integrity shows it's age as problems arise and the Browns are left stranded in the middle of the water.

The four eldest Brown brothers prepare for a second solo mission with hopes of redeeming themselves; visitors arrive in Browntown.

Questions are answered about the French bulldog, poodle, airedale, chihuahua and Labrador.

A dog's eye view of the bond shared by people and their pets.

Ricky adopted a 20-foot Burmese python he rescued from a burning building, and now needs Antonio's help to transform his basement into an epic habitat with heated rock facades, a waterfall and a pond.

Antonio builds a backyard, temperature-controlled clubhouse with separate self-sustaining tanks and a common climbing area for two bearded dragons, and a cool hangout spot for the family.

Birds of prey at the Renaissance Faire are in need of the West Nile vaccine; Piper the peppy dachshund is not so peppy; Dr. Lavigne performs surgery; Dr. Ross helps Tesla the tortoise with a fractured beak.

A wombat named Daisy is suffering from mysterious health issues; transporting a giraffe calf; a secret hidden underneath the Melbourne Zoo is revealed.

Terri and Bindi witness and help with a complex koala surgery.

Tia, her children and the extended Villalobos family reveal behind-the-scenes stories about the dogs that stole their hearts over the years.

Mariah faces a challenging rescue when she realizes the dog in danger is deaf; former adopters come back to Villalobos set on adopting a special-needs dog; the rescue struggles to track a dog's owner because of outdated microchip information.

Hunter kills elk illegally, suspicious activity in the desert, bear tears apart the inside of a car, and the FWP track down a suspect with three warrants to his name.

Nighttime undercover operation is underway to stop illegal shooters; unruly suspect evading arrest; desert highway tragedy; outstanding warrant ruins family cruise.

Father arrested on a warrant while his son is apprehended on drug charges; fisherman caught wielding illegal firearm; wanted man captured; orphan bear released into the wild.

The Fish and Wildlife Police release a bear into the wild; DUI driver is caught; suspects with multiple warrants are apprehended; ducklings are trapped in a storm drain.

Fish and Wildlife Police take on bear poachers, one of whom is inebriated; man with an outstanding warrant is caught in the middle of an adult situation; a rattlesnake surprises an officer.

Wardens stumble upon a heated situation on the side of the road; Lesofski searches for the culprit behind an elk carcass; a riverside check station cites four minors under the influence; underage drivers are caught behind the wheel.

The day takes a grim turn when wardens step into the world of "CSI" to determine where a deer was killed; a poaching-loving family is finally going to trial after discovering their responsibility behind multiple animal deaths.

Wardens go on hot pursuit to catch a hunter who dodged a routine check; drought conditions in Montana shut down hunting and fishing for the season; a pack of pesky bears make their way into town.

Warden Chris Crane responds to the call to rescue a kayaker; anglers are caught fishing in a prohibited area; suspicions arise when wardens investigate the cause behind multiple mysterious deer deaths in Missoula Valley.

Wardens stumble upon a heated situation on the side of the road; Lesofski searches for the culprit behind an elk carcass; a riverside check station cites four minors under the influence; underage drivers are caught behind the wheel.

The day takes a grim turn when wardens step into the world of "CSI" to determine where a deer was killed; a poaching-loving family is finally going to trial after discovering their responsibility behind multiple animal deaths.

Wardens go on hot pursuit to catch a hunter who dodged a routine check; drought conditions in Montana shut down hunting and fishing for the season; a pack of pesky bears make their way into town.

Warden Chris Crane responds to the call to rescue a kayaker; anglers are caught fishing in a prohibited area; suspicions arise when wardens investigate the cause behind multiple mysterious deer deaths in Missoula Valley.

Nighttime undercover operation is underway to stop illegal shooters; unruly suspect evading arrest; desert highway tragedy; outstanding warrant ruins family cruise.

Father arrested on a warrant while his son is apprehended on drug charges; fisherman caught wielding illegal firearm; wanted man captured; orphan bear released into the wild.

Traits of the Jack Russell, golden retriever, Pembroke corgi, vizsla and German shepherd.

Dog's eye view of the Newfoundland, bichon frise, dachshund, beagle and boxer.

Antonio and his team look back at some of their biggest and best builds, and get updates from grateful owners about how much the animals are enjoying their new homes.

The Marsh Pride welcomes new cubs which they must protect from an encroaching buffalo herd; Malaika the cheetah is on the hunt to provide for her young; Jonathan seeks to reconnect with leopard Bahati who has three rarely seen cubs of her own.

Dr. Lavigne does a not-so-routine surgery on a hermaphrodite dog that's both male and female; a bearded dragon battles a skin disease that Dr. Ross must treat before it causes serious problems; Dr. Blue manages work and a big family move.

Keepers become concerned when the big move for lion brothers Lwazi and Ato is delayed; young rhino Kifaru is challenged during a mating ritual; a brilliant plan saves the endangered mountain pygmy possums.

Bindi and the zoo welcome two baby echidnas; health concerns become a major threat for one puggle's survival; a jabiru goes missing.

Two teachers from Massachusetts fall in love with a deaf puppy they hope to give a forever home; a house fire reveals a massive dog-hoarding situation; Earl's wisdom isn't enough to keep one of the parolees from getting into trouble.

A potential best friend needs to pass a unique test before he can be adopted out; parolee Jammall returns after a mysterious absence; a year after losing their house in a fire, M2 and Kanani do something special for the dog who saved their lives.

Howie Mandel reaches out to ATM for another tank, only this time it's a surprise for his manager's company; Three Arts Entertainment already has an existing tank but it needs a serious upgrade.

Pianoworks in Rochester, N.Y. wants Wayde and Brett to build them a piano of their own; this one is made out of acrylic and filled with fish.

The Mob Museum makes Wayde and Brett an offer they can't refuse; they want a tank with replica sunken rumrunner for their prohibition exhibit and speakeasy in downtown Las Vegas.

Lusso Auto Spa, designers of customizations for high-end and rare vehicles, want an exotic fish tank that matches their amazing automobiles; they commission a massive 14-foot, three-sided tank.

NASCAR driver Kurt Busch and his wife request a little piece of paradise inside their aquarium - they want to replicate their wedding location.

Mike tries to move a giant cactus in Arizona and then travels to a maggot farm in Idaho to learn their purpose.

Mike cleans a tar pit and then learns about animal rendering and how much of a farm animal can be recycled.

Mike heads to a unique dairy farm in Ramona, Calif. where he learns how to milk, care for and breed dromedary camels.

Mike visits the Happy Trails Kennels in Big Lake, Alaska, where he finds out how to breed and train sled dogs.

Mike tries to move a giant cactus in Arizona and then travels to a maggot farm in Idaho to learn their purpose.

Mike cleans a tar pit and then learns about animal rendering and how much of a farm animal can be recycled.

Mike heads to a unique dairy farm in Ramona, Calif. where he learns how to milk, care for and breed dromedary camels.

Mike visits the Happy Trails Kennels in Big Lake, Alaska, where he finds out how to breed and train sled dogs.

Pianoworks in Rochester, N.Y. wants Wayde and Brett to build them a piano of their own; this one is made out of acrylic and filled with fish.

The Mob Museum makes Wayde and Brett an offer they can't refuse; they want a tank with replica sunken rumrunner for their prohibition exhibit and speakeasy in downtown Las Vegas.

Doberman, westie, Irish setter, miniature pinscher, and whippet.

Discovering the bloodhound, Yorkshire terrier, Great Dane, shih tzu and Rhodesian ridgeback breeds.

The dynamics of the Marsh pride are changing with the introduction of the older cubs to Charm's newborns; Malaika's persistence to nourish her young leads to a dramatic wildebeest pursuit; Bahati reveals her cubs as Jonathan has his first sighting.

Bahati struggles to protect her three cubs from baboons and lions; the Marsh lionesses hunt an injured buffalo while Malaika meets her match in a battle with a large male impala; the arrival of six male lions puts the entire Marsh Pride at risk.

Dr. Ross goes to surgery when constipation becomes serious for a tegu lizard; Dr. Blue treats a boxer that can barely breathe; the doctors help a baby alpaca in distress and are given VIP access to a special event as a thank you.

In the Savannah, Dr. Bonnie must perform a critical surgery on zebra Zaide's badly damaged tail; tiger Indrah gets an incredible 10th birthday surprise; Dr. Sarah is determined to solve spider monkey Isobella's medical mystery.

Robert continues his father's legacy as he faces off with Bosco, the most aggressive croc at the zoo; Bindi lends a hand when a koala needs eye surgery.

A potential adopter wants to give a senior dog that has only known life in a kennel a forever home; M2 and Kanani find a box of puppies in a field; Matt and Earl head to the kitchen to cook some fresh food for a sick dog.

Tia and Country Matt team up to rescue an aggressive dog; a local law student wants to adopt a dog that can go running with her; a dog is brought in with a serious skin condition and tumors.

Forrest teams up with a specialist in Newfoundland in search of a predator that was declared extinct in 1930; the duo meets with a hunter that shot what is believed to be a wolf and uncovers evidence that suggests the species could be alive.

Forrest Galante visits the island of Java in Indonesia to look for the Javan Tiger; this exotic predator was declared extinct in 2003, but park rangers and locals have had recent sightings and are collecting evidence of its existence.

Forrest travels to the Faroe Islands to look for any trace of the great auk; his passionate search for a large flightless seabird takes him through some of the most scenic and rugged terrain he's ever seen.

Forrest combs the Florida Everglades for a predator rumored to exist for years, the Black Panther; it might be a case of mistaken identity, but while scouring the landscape, discoveries suggest that it might be more than a rumor.

Forrest tracks clues and eyewitness accounts suggesting that the Formosan clouded leopard is still alive after being declared extinct; he treks deep into the jungles of Taiwan where a run-in with a predator might just solve a mystery.

While vacationing in South Africa, Peter Knottenbelt suddenly finds himself in the jaws of a massive crocodile; in Nova Scotia, Meg Doyle is walking her beloved dog when they're suddenly ambushed by a pair of angry raccoons.

On family trip to the Canadian wilderness, 12-year-old Zac Delventhal is dragged from his sleeping bag by a hungry wolf; while swimming in the Pacific Ocean, Maria Korcsmaros is attacked by a great white shark.

While working in the Canadian wilderness, Louie van Grootel is attacked by a massive grizzly bear; Travis Kauffman comes face to face with a hungry mountain lion while trail-running in Colorado.

Sandy Prince is swimming in an African river when she's attacked by a massive crocodile; mountain-biking in Washington State, Phil Anderson comes face to face with a hungry cougar.

While vacationing in South Africa, Peter Knottenbelt suddenly finds himself in the jaws of a massive crocodile; in Nova Scotia, Meg Doyle is walking her beloved dog when they're suddenly ambushed by a pair of angry raccoons.

On family trip to the Canadian wilderness, 12-year-old Zac Delventhal is dragged from his sleeping bag by a hungry wolf; while swimming in the Pacific Ocean, Maria Korcsmaros is attacked by a great white shark.

While working in the Canadian wilderness, Louie van Grootel is attacked by a massive grizzly bear; Travis Kauffman comes face to face with a hungry mountain lion while trail-running in Colorado.

Sandy Prince is swimming in an African river when she's attacked by a massive crocodile; mountain-biking in Washington State, Phil Anderson comes face to face with a hungry cougar.

Forrest Galante visits the island of Java in Indonesia to look for the Javan Tiger; this exotic predator was declared extinct in 2003, but park rangers and locals have had recent sightings and are collecting evidence of its existence.

Forrest travels to the Faroe Islands to look for any trace of the great auk; his passionate search for a large flightless seabird takes him through some of the most scenic and rugged terrain he's ever seen.

Discovering the English bulldog, wire fox terrier, collie, and cavalier King Charles spaniel breeds.

Meeting the pug, weimaraner, maltese, soft coated wheaten terrier, and akita.

The team return to the Mara during the migration of the wildebeest; the Marsh Pride are missing and must be found; a rare coalition of five male cheetahs has arrived; Bahati attempts to hunt topi before a huge crocodile intervenes.

New characters emerge, including Fig the leopard; Jackson witnesses the five cheetah boys cooperatively hunting; Notch and her young cubs attempt to journey across the plains; Jonathan witnesses a spectacular crossing before some old friends return.

The docs are on double duty when Dr Ross brings his daughter into the clinic; a dog is rushed to Dr Lavigne after suffering multiple seizures and Dr Blue performs a tricky surgery; the staff must tame a feisty feline patient.

While navigating the COVID-19 global pandemic, the staff members must ensure proper care for their animals; keepers spring into action when dental surgery is needed for elderly tiger Binjai; a family of cotton top tamarin monkeys must be relocated.

The Irwins go to the Steve Irwin Wildlife Reserve; Robert leads his first croc-catching team; Bindi and Chandler have a life-changing announcement.

Villalobos is invited to participate in Dog Bowl, creating a chance for a handful of dogs to steal the spotlight; M2 helps a neglected dog left in horrible conditions; a couple take the first step towards becoming parents by adopting a dog.

Tia and her kids race to rescue a stray dog near a busy highway; an adoption requires some temperament testing when a trucker wants to adopt a dog to join him on the road; a return adopter seeks out a senior dog.

Pete travels to Alaska to build a mountaineering lodge in the shadow of North America's highest peak; constructing an A-Framed masterpiece for the Mt. McKinley Princess Wilderness Lodge with breathtaking views of Denali.

Pete and NTS build a tree house for the For-Mar Nature Preserve just outside Flint, Mich.; the 5-platform nature headquarters serves as a positive addition to a community still reeling from the water crisis that began in 2014.

The NTS team leave their tents behind and head to New Jersey to build a campers' retreat for an outdoor-loving couple; with a screened-in porch, floating barbecue deck and cozy hanging bed, this Adirondack style tree-cabin puts glamping in the trees.

Pete is back in Texas to build a sophisticated, sleek-and-chic treehouse in the heart of Dallas; Daryl and the NTS team put treehouse engineering to the ultimate test at Washington State University, proving down-to-the-pound the power of the TAB.

Pete and his team descend upon Virginia for the first time to bring the tree house revolution to Bella Rose Plantation; drawing on the architectural innovations of Thomas Jefferson, Pete designs a luxurious two-story tree house with colonial columns.

Pete travels through France with tree house visionary Alain Laurens; winding through the magical countryside, Alain shows Pete his structures that implement ingenious engineering, reach dizzying heights, and redefine what a tree house can be.

Pete heads to Alabama's Appalachia to build a super spy treehouse; he pulls out all the stops to make the client's espionage-themed dreams come true; gadgets, hidden passageways, secret rooms and more.

Dreams are coming to life in Oregon as Pete builds for Marlene, an 81-year-old woman who is finally getting one of her greatest wishes fulfilled: a treehouse; Marlene is giddy with excitement for this new adventure.

Pete answers the call of duty to build a tree house in Pennsylvania that focuses on the children of Marines; cargo netting off the deck provides an exciting way to enter, while even more nets inside form a bridge to access a private loft space.

Pete travels through France with tree house visionary Alain Laurens; winding through the magical countryside, Alain shows Pete his structures that implement ingenious engineering, reach dizzying heights, and redefine what a tree house can be.

Pete heads to Alabama's Appalachia to build a super spy treehouse; he pulls out all the stops to make the client's espionage-themed dreams come true; gadgets, hidden passageways, secret rooms and more.

Dreams are coming to life in Oregon as Pete builds for Marlene, an 81-year-old woman who is finally getting one of her greatest wishes fulfilled: a treehouse; Marlene is giddy with excitement for this new adventure.

Pete answers the call of duty to build a tree house in Pennsylvania that focuses on the children of Marines; cargo netting off the deck provides an exciting way to enter, while even more nets inside form a bridge to access a private loft space.

Pete and NTS build a tree house for the For-Mar Nature Preserve just outside Flint, Mich.; the 5-platform nature headquarters serves as a positive addition to a community still reeling from the water crisis that began in 2014.

The NTS team leave their tents behind and head to New Jersey to build a campers' retreat for an outdoor-loving couple; with a screened-in porch, floating barbecue deck and cozy hanging bed, this Adirondack style tree-cabin puts glamping in the trees.

Otter Queen Olivia must make a life-changing decision when she discovers the consequences of her daughter's reckless betrayal; Eva and her Lost Army plan their revenge; the son of Empress White Whiskers returns home.

Trouble arises when a storm hits, halting Queen Olivia's triumphant return to Bay City; Eva grieves the death of her mate; Princess Sasha's affair with a Mudpaw threatens the royal bloodline.

Jeremy travels to South Africa to catch a bull shark lurking in freshwater locales.

Jeremy swims into the lair of the snakehead, a predatory freshwater fish with a killer reputation.

Jeremy Wade journeys up the Congo River in search of the goliath tiger fish.

Jeremy Wade is in Brazil, searching for a river monster that has killed three cowboys.

Jeremy Wade sets out for South America to find a monster.

Forrest and his wife, Jessica, are in Peru, where a local farming village is being terrorized by what they believe is a man-like beast from Peruvian folklore; evidence leads the team deep into the Andes to find the source of these terrifying attacks.

Rumors of witchcraft bring Forrest to Africa's Zambezi River, the site of crocodile attacks plaguing a local fishing village; he and his childhood friend are determined to stop the killings and save the croc before things turn even more deadly.

Dr. Dee returns to Ruby to host another remote clinic; a malnourished bunny; a border collie puppy with a congenital issue; discovering a case of feline immunodeficiency virus in a rescue cat.

A cat with a shattered paw needs help; a rescued opossum needs a new enclosure; in South Dakota, a badly injured dog steals Jeff's heart.

With a puppy's leg on the line, Dr. Jeff attempts a new surgical procedure; a ferret bites off more than it can chew; a disturbing discovery while treating a cat; treating rescued bears.

An abandoned puppy is found with a broken leg; the team cares for a seriously ill Boston Terrier; doctors head out to treat rescued pigs.

An emergency surgery yields a surprising discovery; treating a goat that has been kicked by a horse; a couple travel a long distance to fix their dog's shattered leg; treating an injured ostrich.