Jim Lane picks blueberries alone in the Blue Ridge Mountains until a timber rattlesnake attacks; teacher Rachael Lilienthal's swim in a Florida river becomes a struggle when an alligator bites down on her arm, pulls her underwater and doesn't let go.

A black bear charges Joe Azzouggagh and his German shepherd, Ace, deep in the Ontario wilderness; single father Andrew Dickehage, forced to walk six miles along a rural road at night, comes under attack from unseen predators.

A polar bear chases down Erin Greene as she walks home from a Halloween party in a small arctic town; a bull shark attacks triathlete Chuck Anderson in the Gulf of Mexico, biting his arm and pulling him to the ocean floor.

Diver Tim Saxon films underwater at the Great Barrier Reef and gets stung by an Irukandji jellyfish, one of the world's most venomous animals; a grizzly bear attacks forester George Knoll in the remote Great Bear Rainforest.

Jim Lane picks blueberries alone in the Blue Ridge Mountains until a timber rattlesnake attacks; teacher Rachael Lilienthal's swim in a Florida river becomes a struggle when an alligator bites down on her arm, pulls her underwater and doesn't let go.

Forrest is in the Galapagos seeking the Fernandina tortoise, an animal that was only seen once, over 100 years ago; the clues are here, along with an abundance of unique species, raising hopes of a historic discovery.

Forrest is determined to find out if the famously reclusive Ivory Billed Woodpecker still exists; the alligator and poisonous snake infested swamps of Louisiana make for a challenging mission, but he is prepared for anything.

A security sock keeps a timid pup named Wally calm within his pack of nine Spinone Italianos; Oskar the Pug is constantly into mischief and keeps his librarian mother on her toes.

Seven German Shepherd puppies are being trained as Search and Rescue dogs by their mother out in the country; Prickle the African Pygmy Hedgehog looks for a cuddly cozy pal among a house full of Havanese puppies in the city.

Siberian soulmates' son Calvin is a fireball and puts their relationship to the test; Izzie the Turkish Angora kitten has a tough life balancing her personal style while living in a cats only grooming salon.

Siberian Husky declares himself to be, among a pack of seven pups, their leader, but now he has to back it up with superior sledding skills; Lil the Irish Setter runt proves she can keep up with the dozen count litter.

Terri welcomes Mballa, a new cheetah cub from South Africa, to the Australia Zoo family; Robert sets out to save a stranded platypus and Bindi prepares to meet Bert the Koala Joey as he emerges from his mother's pouch for the first time.

As the calls keep coming in, everyone has been stretched thin since Jimmy quit; Paul comes to the begrudging realization that it's time to replace him.

Jimmy leaves town with Ashley and Andy to do his road show, while Paul has only newbie Caroline to help with gator calls.

Jackson enters the Santé D'or shelter intent on helping an over-aggressive shelter cat named Pigpen. However, by the time he leaves, Jackson is ready to take on the challenge of converting Santé D'or into a new shelter concept.

A cat-obsessed woman gets a kitten as a gift, but is quickly disappointed when the cat terrorizes her other two felines; a couple living in harmony is disturbed by their newest addition's demonic ways.

Tia makes a difficult decision; a family seeks shelter for its pit bull after losing a home in a fire.

Tia's goal is to transform the lives of parolees, however, one parolee risks his chances to get on the correct path; a pit bull rescued from the streets of Jackson, Miss., steals the heart of a potential adopter's heart.

Adventurous Texas family, living on a 200-acre ranch, want a camouflaged treehouse that also serves as a guest house.

Pete has a nine day window to build a Zen-like sanctuary for some old friends in the shadow of the Blue Ridge Mountains in Canton, N.C.

A heard of goats stand in the way of Pete building an elegant English retreat with a luxurious hanging bed on an idyllic farm in Waxhaw, N.C.

Pete and the crew round-up the magnificent seven of cypresses alongside the Frio River and moseys on down to Leakey, Texas to build a gigantic, Texas-sized treehouse with the longest bridge in NT&S history.

In Kentucky, Pete creates a treehouse with 17-foot-high ceilings and open-frame timber rafters, allowing a couple with a love of tree-climbing to harness up and dangle from both inside and out.

The NTS team focus their chi to create a meditation space 20 feet high through twisting maples for a couple in West Seattle.

A 500 square-foot ski lodge treehouse with a stainless steel candy kitchen and wine bar, 11 feet in the air and among 14 camphor trees is the gift Santa Pete wants to give the candy and wine making Splinter family of Northern California.

Pete takes on an exciting project for two tastemakers in Maine that includes a towering rooftop crow's nest and a wall of windows.

Pete and his team undertake a sticky challenge and reinvent the classic single-tree treehouse; constructing a magnificent and whimsical beehive-like structure soaring 30-feet high in a majestic Douglas fir.

The NTS team focus their chi to create a meditation space 20 feet high through twisting maples for a couple in West Seattle.

A 500 square-foot ski lodge treehouse with a stainless steel candy kitchen and wine bar, 11 feet in the air and among 14 camphor trees is the gift Santa Pete wants to give the candy and wine making Splinter family of Northern California.

Pete takes on an exciting project for two tastemakers in Maine that includes a towering rooftop crow's nest and a wall of windows.

Pete and his team undertake a sticky challenge and reinvent the classic single-tree treehouse; constructing a magnificent and whimsical beehive-like structure soaring 30-feet high in a majestic Douglas fir.

Pete has a nine day window to build a Zen-like sanctuary for some old friends in the shadow of the Blue Ridge Mountains in Canton, N.C.

A heard of goats stand in the way of Pete building an elegant English retreat with a luxurious hanging bed on an idyllic farm in Waxhaw, N.C.

After two years of devoted care by Julius, an orphaned baby elephant named Malkia is ready to return to the wild.

With the help of her two daughters and husband Phil, Donna Stepan runs Sleepy Burrow Wombat Sanctuary; she takes in a new orphaned baby in critical condition and the next 24 hours become a fight for its life.

Four friends set out on a grueling jungle expedition where they face torrential rains and deadly insects in a quest to verify a rumor of giant golden dorado in an uncharted Bolivian river.

The guys head deep into Zambia in search of large tigerfish and the only things standing in their way are 400 miles of unpaved roads, crocodiles, hippos and a serious lack of fuel.

The guys discover Greenland is wilderness at its most pure - and most dangerous - when they follow a lead to an extremely remote river believed to hold massive Arctic char.

The crew heads to Mongolia in search of taimen, the largest, most ferocious member of the salmon family.

Dr. Ross treats baby kangaroos and teams up with the owners of a petting zoo to hold an animal awareness event; Dr. Blue removes a mass from a beloved pit-mix; Dr. Lavigne treats a vision- and hearing-impaired Great Dane.

A health scare ends Dr. Blue's dreams of motorcycle riding with his brother; Dr. Ross treats a sweet bearded dragon laying bad eggs; Dr. Lavigne must determine what to do about a large tumor taking over a boxer's toe.

The time comes for Dr. Ross and Tauvia to move out of his mother's house; Dr. Lavigne makes a life-or-death decision with Diesel, a mastiff who may have a toy lodged in his intestines; Dr. Blue sees a pig with an affection for household furniture.

Dr. Dee hosts a pet tricks competition to raise funds for a no-kill animal shelter in Fairbanks; surgery for a pot-bellied pig named Lilly Lou is full of surprises; stallion of Dr. Dee's long-time friend has a possibly deadly tumor.

Animal House gets busy as Dr. Dee must deal with a Chihuahua with a life-threatening condition, trim the beak of a vocal Macaw, and treat a deathly ill newborn calf; Dr. Dee and Ken add seven fainting goats to the family at home.

Dr. Dee and her husband Ken host a clinic in a town with a population of 107; back at Animal House, Dr. Dee races to save an akita with a gunshot wound.

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.

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.

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 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.

Dr. Dee and Ken head to Eagle, Alaska, to host a vet clinic; dog that suffered a vicious attack needs emergency surgery; Dr. Dee contemplates a lovesick turtle mystery; checking a rancher's cows for pregnancy.

Dr. Dee has to be careful when she visits a ranch to check on a pack horse named Red; Dr. Terry and Nicole head to a remote clinic; dog has a mass that appears to be cancerous.

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 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.

Dr. Dee and Ken head to Eagle, Alaska, to host a vet clinic; dog that suffered a vicious attack needs emergency surgery; Dr. Dee contemplates a lovesick turtle mystery; checking a rancher's cows for pregnancy.

Dr. Dee has to be careful when she visits a ranch to check on a pack horse named Red; Dr. Terry and Nicole head to a remote clinic; dog has a mass that appears to be cancerous.

Animal House gets busy as Dr. Dee must deal with a Chihuahua with a life-threatening condition, trim the beak of a vocal Macaw, and treat a deathly ill newborn calf; Dr. Dee and Ken add seven fainting goats to the family at home.

Dr. Dee and her husband Ken host a clinic in a town with a population of 107; back at Animal House, Dr. Dee races to save an akita with a gunshot wound.

Theresa and Tony Scruff Matthews turned their dream retirement home in Australia into a full-time kangaroo rescue; they're ready to release kangaroos Lisa, Luna, and Barbie, but an injury might threaten one of them returning to the wild.

Seven-year-old social media sensation Roman McConn and his mom, Jen, have saved over 1,500 shelter dogs by connecting them with adopters around the country; the duo have 1 month to find homes for over 100 shelter dogs, including Noah, Rocky and Migo.

When wildlife agents find an alligator with a fresh bullet wound to the head, nearby anglers are the prime suspects; an injured hunter must be evacuated by helicopter; agents use drones to track crabbers selling their catch across state lines.

LDWF biologists undertake an explosive mission to help conserve Louisiana's wild turkeys; a suspicious deer skull points to a hunter flouting the law; more than 1,000 lbs of shrimp are at stake when a captain is caught in a major violation.

Wildlife agents interrogate a felon caught hunting with a firearm; witnesses report a hunter trying to bludgeon a swimming deer from his boat; a duck shot out of season leads agents to a slew of violations.

Wildlife agents join a manhunt for an armed fugitive on the bayou; a nervous young hunter reveals a serious violation; a night shrimping bust leads to a familiar and unrepentant culprit.

When an elderly man goes missing in a vast wilderness area, wildlife agents race to find him before nightfall; a tip leads agents to a haul of undersized redfish and anglers who refuse to confess; bloody evidence ties a trespasser to an illegal deer.

Wildlife agents question a hunter with something to hide and notice damning evidence on his person; a group of youths shooting ducks from a moving boat is caught in the act; frightened hunters accuse a landowner of serial harassment.

The search is on for a missing boater who may have suffered a stroke on Corney Lake; wildlife agents deploy as a hurricane makes landfall, rescuing stranded survivors from the floodwaters and dispensing lifesaving supplies.

Discovering the lives of conservation officers of Montana defending public lands, handling antipoaching sting operations, and more.

Wardens use new aircraft to patrol from above; on the ground, wardens experience a crazy weekend during the Yellowstone Boat Float and ensure participants comply with the law; their coordinated efforts enhance safety and order in the region.

Wardens tackle poaching, missing elk and unauthorized campers.

Wardens in Region 2 respond to a TIP Mont call about a potential elk violation, conducting a detailed investigation; in Region 4, a warden assists hunters in recovering a wounded deer, ensuring proper procedures are followed.

Wardens tackle elk harassment, illegal shootings and rescue a deer.

Wardens crack down on anglers not following the rules while salmon fishing; a hunter with a checkered past is caught red-handed; beaver dam management calls for some drastic measures; elk hunting season finds eager hunters on their best behavior.

Officers encounter many hunters on the opening day of waterfowl season; Chief Haines and his friends enjoy hunting during their annual Grouse Camp trip, and activities heat up on the lake as patrons celebrate the 4th of July.

Officers investigate a timber contract violation and patrol Michigan's deer season; a Warden's videographer joins a DNR program that empowers women to explore outdoor hobbies and conservation.

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.

Wardens crack down on anglers not following the rules while salmon fishing; a hunter with a checkered past is caught red-handed; beaver dam management calls for some drastic measures; elk hunting season finds eager hunters on their best behavior.

Officers encounter many hunters on the opening day of waterfowl season; Chief Haines and his friends enjoy hunting during their annual Grouse Camp trip, and activities heat up on the lake as patrons celebrate the 4th of July.

Officers investigate a timber contract violation and patrol Michigan's deer season; a Warden's videographer joins a DNR program that empowers women to explore outdoor hobbies and conservation.

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.

Wardens use new aircraft to patrol from above; on the ground, wardens experience a crazy weekend during the Yellowstone Boat Float and ensure participants comply with the law; their coordinated efforts enhance safety and order in the region.

Wardens tackle poaching, missing elk and unauthorized campers.

The Thrift Store crew is left shocked by the aftermath of the accident as donations flood in; Allison takes home a patient to make sure he doesn't take a turn for the worse.

Dr. Schwartz is on a mission to hunt down the remains of a tin can that lies within the intestines of an anxious-ridden Labradoodle.

The family prepares Croc One, Steve Irwin's research ship, for a mission to release an endangered sea turtle back to the wild; Scarlett the giraffe reunites with her grandmother; Grub the wild echidna is released from the Zoo's Wildlife Hospital.

Bob Freer makes the announcement that he is closing Everglades Outpost due to lack of funds after Jimmy gets bit by a gator; no outpost means no gator rescue as Paul races to keep the outpost open.

The Gator Boys do their best to rescue giant alligator Moby Dick before hunting season begins.

A woman's cat has always been aggressive, but once her boyfriend moved in, he developed a devilish mean streak; a couple's fur-child makes the world his litter box and does everything in his power to escape.

Alex fears that when she leaves for college, her mother will get rid of her cat, Meeko, who pees all over the house and attacks people; clients will not come to Kelly's home because her cat, Symone, will attack anyone who laughs or cries.

Tia and Mariah try to track down a pit bull and her puppies that were abandoned in the desert.

Tia contends with a shocking rescue and a surprise animal-control inspection.

The investigators meet two bigfooters with hard evidence and join them on a night investigation at Skinwalker Canyon in New Mexico; after an intense town-hall meeting, the team splits up and trek for the Four Corners Monument.

The investigators return to Kentucky to inspect some recent casts of Bigfoot tracks; after a crazy night with Ernie the Turtleman,, they have a horrifying night of their own, using Louisville Sluggers for knockers.

The team tries to lure in a possible juvenile Sasquatch by using their decoy, Stumpy, on the dawn of hunting season in Virginia.

The team enlists the help of a radio show to reach out to witnesses across West Virginia in hopes of finding a bigfoot.

Noah finds his dream property on a remote, private island but without the full deposit to secure it, agrees to a complex barter deal; back on Mosman Island, the emotion of the Alaskan trip takes its toll on youngest sibling Rain.

The Wolfpack moves to fulfill sister Rain's longtime goal of mining gold on the mountain; with the siblings shorthanded, other big projects like Gabe's cabin build must compete for priority.

The Brown's embark on bold, new chapters, from expanding families to a long-awaited journey to Alaska; Bird and Noah race to overcome big obstacles to get their gold mining setup operational; the Wolfpack reflect on never-before-seen moments.

The Wolfpack struggles to bring their 50-year-old mining equipment back to life; Rain makes an emotional return to resume her role as Brown mine boss in hopes of fulfilling the Brown's dream of striking gold.

Noah finds his dream property on a remote, private island but without the full deposit to secure it, agrees to a complex barter deal; back on Mosman Island, the emotion of the Alaskan trip takes its toll on youngest sibling Rain.

The Wolfpack moves to fulfill sister Rain's longtime goal of mining gold on the mountain; with the siblings shorthanded, other big projects like Gabe's cabin build must compete for priority.

The Brown's embark on bold, new chapters, from expanding families to a long-awaited journey to Alaska; Bird and Noah race to overcome big obstacles to get their gold mining setup operational; the Wolfpack reflect on never-before-seen moments.

The Wolfpack struggles to bring their 50-year-old mining equipment back to life; Rain makes an emotional return to resume her role as Brown mine boss in hopes of fulfilling the Brown's dream of striking gold.

The investigators return to Kentucky to inspect some recent casts of Bigfoot tracks; after a crazy night with Ernie the Turtleman,, they have a horrifying night of their own, using Louisville Sluggers for knockers.

The team tries to lure in a possible juvenile Sasquatch by using their decoy, Stumpy, on the dawn of hunting season in Virginia.

A routine neutering takes a turn when Dr. Vasilescu can't find a canine's testicles; Letty the Burmese sheepdog pup struggles with excessive sleep.

A friendly neighborhood pooch comes into RAPS when experiencing eye trouble; the thrift store gets a second chance as Karen and the team discover an oasis of treasure amid old bins destined for the landfill.

The Irwins travel to South Africa, where Terri helps release a wild leopard; Bindi learns from the all-female anti-poaching squad, The Black Mambas; Robert attempts to photograph Africa's big five game animals.

Troublesome alligators must be removed from a school playground, a nursery and a housing development; a Burmese python sinks its fangs into Tre.

Paul and Jimmy capture a monster-sized gator; an alligator fights to protect her young.

A couple's newest addition, Dexter has been terrorizing their home and are struggling to keep the peace between their two felines; a couple is exhausted trying to wrangle the bad behavior of their cat, Giver.

Jackson Galaxy is in Austin, Texas, to help a professional skydiver with two high-flying Savannah cats, Morello and Darwin; a couple's Maine coon cat, Wolfie, is pooping all over the house and covering it up with their stuff.

Tia's daughter faces a difficult decision about her pet; a family of pit bulls in an abandoned house is rescued.

Tia chases down the mysterious origins of a dog during a dangerous midnight raid; long term Villalobos resident's chances of a forever home are threatened by cat; parolees puts his reputation on the line by recommending a friend.

In southern Louisiana, Lt. David Nunez and Sgt. Austin Arteaga investigate a group of bird hunters on opening day of teal season; a repeated offender is busted for taking immature crabs; a late-night deer decoy leads to a hunter in handcuffs.

In Ouachita Parish, a trespassing investigation leads to a dicey encounter and multiple seizures of deer; agents confront a group of duck hunters who are spotted killing non-game birds; health code violations are found during a routine oyster patrol.

While using the LDWF's spy in the sky drone, agents track down a boat captain breaking the law in Plaquemines Parish; a family of shrimpers is investigated for pulling oversized nets; two feuding fishermen are suspected of being under the influence.

As a storm rolls in over St. Tammany Parish, Cpl. Blaine Wagner and Cpl. Rick Clark assist in a search-and-rescue mission for a missing fisherman; agents confront a repeat offender for harassing hunters, and a felon is caught with an illegal firearm.

As Hurricane Ida makes landfall, wildlife agents deploy to help the people of Louisiana; an injured woman is trapped in a flooded hotel; elderly neighbors await rescue in punishing conditions; lifesaving supplies must be delivered to those in need.

An inmate prepares for a reunion with the son he hasn't seen in a decade; teams are put on alert when narcotics infiltrate the penitentiary.

Lt. Col. Slater is assigned to run a public horse auction; Warden Cain tries to keep order when inmates stage a hunger strike.

Deep in the woods and bayous of Louisiana, wildlife agents protect the state's resources; a crab fisherman is caught stealing dozens of traps, a hunter crosses state lines with an illegal deer and agents rescue an injured bald eagle.

In Jackson Parish, a reckless hunter is investigated for shooting down a highway; agents stake out a man suspected of two illegal deer kills; duck hunters are confronted for harassment; a crowded boat parade ends with citations.

An inmate prepares for a reunion with the son he hasn't seen in a decade; teams are put on alert when narcotics infiltrate the penitentiary.

Lt. Col. Slater is assigned to run a public horse auction; Warden Cain tries to keep order when inmates stage a hunger strike.

Deep in the woods and bayous of Louisiana, wildlife agents protect the state's resources; a crab fisherman is caught stealing dozens of traps, a hunter crosses state lines with an illegal deer and agents rescue an injured bald eagle.

In Jackson Parish, a reckless hunter is investigated for shooting down a highway; agents stake out a man suspected of two illegal deer kills; duck hunters are confronted for harassment; a crowded boat parade ends with citations.

In Ouachita Parish, a trespassing investigation leads to a dicey encounter and multiple seizures of deer; agents confront a group of duck hunters who are spotted killing non-game birds; health code violations are found during a routine oyster patrol.

While using the LDWF's spy in the sky drone, agents track down a boat captain breaking the law in Plaquemines Parish; a family of shrimpers is investigated for pulling oversized nets; two feuding fishermen are suspected of being under the influence.

Cats of the Southwest.

Wild and domestic cats occupy the same sanctuary; popular television cat in Little Rock, Ark.

Robert wrangles Utah, a venomous 12-foot king cobra; Dr. Amber visits Tandora to care for wild koalas; back at the zoo, an old injury flares up for Bruce the brolga, a bird that has been in the Irwins' care for 26 years.

Ashley has a bad experience in the gator pit; Jimmy accuses Chris of poor training methods.

Paul and Jimmy argue over Jimmy's goal to expand the Gator Boys Rescue Operation; Jimmy disappears; Paul tries to keep the Gator Boys from falling apart.

A family is determined to change the behavior of their vicious cat named Mia who aggressively attacks them daily; a couple is being torn apart by the destructive behavior of their feline, Precious.

A ferocious black feline terrorizes her owner's with frequent surprise attacks that the local urgent care doctor knows them by name; a couple is desperate for Jackson's help to end their cat's litter box strike.

An old visting friend of Tia's is quickly is thrown into the fire helping with a rescue; former adopter wants to take on another dog; Mondo cares for an injured, drop-off while Tia and Louise race to save a loose dog on the interstate.

Parolee is headed down the wrong path, only days after being released from prison; former volunteer comes back to adopt a dog, but her Boxer has other plans.

Jeremy looks into a series of grisly attacks at the site of the world's worst nuclear power plant accident.

The rivers of Guyana may host a real freshwater mermaid that the locals call the Water Mama.

Wade teams up with a local tribe to solve three mysterious deaths in three different South American countries.

Wade hunts for the Lau-lau, a creature said to swallow men whole.

Jeremy's quest to locate the legendary Loch Ness Monster takes him from the depths of the Scottish lake to the volcanoes of Iceland.

Wade is on the hunt to find out what was behind the Sobral Santos attack on the Amazon River, where more than 200 passengers were killed on a pitch-black night.

Wade comes face-to-face with one of South America's greatest freshwater fighting fish.

Wade faces one of his greatest fears to uncover increasing missing persons cases.

Angler Jeremy Wade pushes himself and his gear past breaking point to discover what killed a bride in the Colombian Amazon; amidst dense jungle and hostage-taking rebels, Jeremy discovers evidence that turns the investigation on its head.

Wade is on the hunt to find out what was behind the Sobral Santos attack on the Amazon River, where more than 200 passengers were killed on a pitch-black night.

Wade comes face-to-face with one of South America's greatest freshwater fighting fish.

Wade faces one of his greatest fears to uncover increasing missing persons cases.

Angler Jeremy Wade pushes himself and his gear past breaking point to discover what killed a bride in the Colombian Amazon; amidst dense jungle and hostage-taking rebels, Jeremy discovers evidence that turns the investigation on its head.

The rivers of Guyana may host a real freshwater mermaid that the locals call the Water Mama.

Wade teams up with a local tribe to solve three mysterious deaths in three different South American countries.

Ralphie is the only boy when Maltese mix, Coco has a surprise litter at urban animal shelter; Ragdool kitten, Jolene is a hand full for her mom.

Abyssinian kitten gets into all of the craft supplies in her home; Elf kitten Pixie searches for a friend.

Abyssinian kitten gets into all of the craft supplies in her home; Elf kitten Pixie searches for a friend.

A rare litter of Portuguese Podengo Pequeno pups are brought into the world by the resident dog about town, Izzy; Cockapoo octuplets are being trained to be therapy dogs.

Bindi and the keepers ready Sophie the Baby Giraffe for her first steps into her enclosure; Robert helps to hand-raise Melman the Kangaroo; Terri oversees a health check for Ravi the Red Panda.

Paul hopes to capture a gator before it gets hooked by an uncaring trapper; Tre books a risque photo shoot with gators and swimsuit models.

Paul and Scott must fend for themselves when Jimmy makes an adventurous trip to South Carolina.

A couple is at odds over their vicious cat Coco who attacks at every opportunity; Foley, a cat with night terrors is driving a wedge between his newlywed owners.

A couple is determined to have Jackson transform the hellish behavior of their cat before they become a family of three; eight year old cat, Riley's destructive behavior is putting a damper on his owners' golden years.

Maria goes to California to rescue an old friend; a puppy's behavior jeopardizes her chance at a forever home; Tia gets a call for an abandoned pit bull.

A dog is left tied up in the blistering summer heat; Matt comes home to save a pit bull from being put down; Tania and Perry decide to adopt a new dog.

Forrest returns to the volcanic islands of Indonesia to find the Millers grizzled langur, otherwise known as the Dracula monkey.

Forest sets off on a dangerous, shark-infested search for the extinct Caribbean monk seal, to prove its existence, he and the crew descend into deep waters where they come face-to-face with a giant tiger shark.

In Vietnam, Forrest treks through the world's largest cave searching for the saola in a hidden oasis; this exotic species was only recently discovered, but rumors swirl that The Asian Unicorn might already be extinct.

The southern Rocky Mountain wolf hasn't been seen in almost 80 years, but recent cattle attacks spark the possibility that is still exists; trekking high into the Sierras, Forrest is determined to bring it out of hiding.

In Vietnam, Forrest teams up with a conservation group to save the largest turtle species in the world from extinction; using cutting edge technology, they attempt to find a suitor for the last and only surviving Giant Softshell.

Andrea Schlake volunteers at an animal sanctuary when a chimpanzee escapes its enclosure and chases her down; a great white shark knocks surfer Todd Endris off his board and attacks him.

A grizzly bear charges taxidermist Wilf Lloyd while he hunts elk with his son-in-law in the Canadian Rocky Mountains; miles from shore, diving 180 feet below the surface, spearfisher Anthony Segrich finds a bull shark charging toward him.

Wayne Petteway is attacked by an alligator while checking crab pots with his brother in North Carolina; in Arizona, Peter Baca is camping with his girlfriend and baby son when he is awoken by something attacking him through the walls of the tent.

Paul Templer is leading a canoe safari on the Zambezi River near Victoria Falls when a hippopotamus bursts to the surface and drags him into the water; in Texas, an animal pounces on 5-year-old Jade DeMoss.

Andrea Schlake volunteers at an animal sanctuary when a chimpanzee escapes its enclosure and chases her down; a great white shark knocks surfer Todd Endris off his board and attacks him.

A grizzly bear charges taxidermist Wilf Lloyd while he hunts elk with his son-in-law in the Canadian Rocky Mountains; miles from shore, diving 180 feet below the surface, spearfisher Anthony Segrich finds a bull shark charging toward him.

Wayne Petteway is attacked by an alligator while checking crab pots with his brother in North Carolina; in Arizona, Peter Baca is camping with his girlfriend and baby son when he is awoken by something attacking him through the walls of the tent.

Paul Templer is leading a canoe safari on the Zambezi River near Victoria Falls when a hippopotamus bursts to the surface and drags him into the water; in Texas, an animal pounces on 5-year-old Jade DeMoss.

Forest sets off on a dangerous, shark-infested search for the extinct Caribbean monk seal, to prove its existence, he and the crew descend into deep waters where they come face-to-face with a giant tiger shark.

In Vietnam, Forrest treks through the world's largest cave searching for the saola in a hidden oasis; this exotic species was only recently discovered, but rumors swirl that The Asian Unicorn might already be extinct.

In a cozy home of Himalayans, a shy kitten named Hugo follows in his father's footsteps; a rags to riches rescue mix brings her brood of puppies to their new dream home and only girl, Honey, makes an unlikely friend.

Twin dachshund pups, Lulu and Betty, discover their different personalities with a little bit of guidance from their free spirit father; a show pup in training, Chinese Crested Dotty, forms an unlikely friendship with rescue pit bull Bryan.

A cat-loving rescue dog named Sweet Potato welcomes a pair of rescue kittens into their new foster home.

Chip, a golden retriever puppy, tries to be the center of attention; a Great Dane's long legs make the dog a tad clumsy.

Terri helps determine if Caballe the rhino is pregnant, while Robert hopes to get the zoo's Aldabra giant tortoises to mate.

A water moccasin is spotted near a home; 6-foot-long rattlesnake; Paul and Scott pull a prank on Ashley and Chris.

The boys have three minutes to obtain blood samples from aggressive gators for an important research project.

Einstein the cat ferociously attacks whenever he sees the other house cat, Izzy; a couple expecting their first baby must make a decision about their indoor cat, Ben who was diagnosed with Toxoplasmosis which could threaten the newborn's life.

A woman's cat has always been aggressive, but once her boyfriend moved in, he developed a devilish mean streak; a couple's fur-child makes the world his litter box and does everything in his power to escape.

Heart-breaking plea is made by veteran to help be reunited with his dogs; overwhelmed shelter needs Tia's help; former volunteer returns.

Single dad hopes to find pit bull companion for himself and his son to fill gap left by painful break-up; Mariah and Toney rescue puppy that needs surgery to walk.

Pete creates a guesthouse for his clients' daughter, who is returning from college.

Pete contends with plumbing issues and other challenges when he builds an over-the-top spa treehouse on a Texas entrepreneur's ranch retreat.

Pete's lavish treehouse for a family in Bedford, N.Y., contains a barbecue patio, a living room and a chalkboard-covered playroom.

Pete transforms an old cedar tree into an uplifting, gold-leafed retreat for a writer in Rhinebeck, N.Y.

A Texas couple ask Pete to create a ranch-style treehouse on their sprawling property outside of Waco.

Pete builds a 16-foot-high adventure headquarters embedded in three cedar trees and highlighted by a 360-degree wraparound deck for a thrill-seeking couple.

Pete builds a Swiss Family Robinson inspired treehouse in Michigan to help a man surprise his wife for their anniversary; Inspired but far more advanced than the original.

Pete explores tree houses worldwide that tap into one's inner spirits; a manta-ray-shaped tree house within a Thai jungle; a spirit-soothing retreat hidden in Australia's wilderness.

Pete and his crew trek to the Blue Ridge Mountains to build a tree house for one of their own, carpenter Mike Reynolds; sitting 16 feet high, it makes the perfect rustic guesthouse to host the raucous Appalachian Breaking Up Christmas tradition.

Pete builds a 16-foot-high adventure headquarters embedded in three cedar trees and highlighted by a 360-degree wraparound deck for a thrill-seeking couple.

Pete builds a Swiss Family Robinson inspired treehouse in Michigan to help a man surprise his wife for their anniversary; Inspired but far more advanced than the original.

Pete explores tree houses worldwide that tap into one's inner spirits; a manta-ray-shaped tree house within a Thai jungle; a spirit-soothing retreat hidden in Australia's wilderness.

Pete and his crew trek to the Blue Ridge Mountains to build a tree house for one of their own, carpenter Mike Reynolds; sitting 16 feet high, it makes the perfect rustic guesthouse to host the raucous Appalachian Breaking Up Christmas tradition.

Pete contends with plumbing issues and other challenges when he builds an over-the-top spa treehouse on a Texas entrepreneur's ranch retreat.

Pete's lavish treehouse for a family in Bedford, N.Y., contains a barbecue patio, a living room and a chalkboard-covered playroom.

Greg and habitat designer Lucas travel to Washington State to meet the Dasch family, who look to create a grand Mayan-inspired terrarium for their extensive collection of poisonous dart frogs.

Just south of Cornel's World, reptile and amphibian lover and rescuer, Stevie, enlists the team to come up with a sci-fi fantasy-themed enclosure for her basilisk lizard; the guys lay a little princess magic on a showpiece for three ball pythons.

American shorthair, Savannah, Scottish fold, Persian, ragdoll and Sphynx breeds..

Maine coon, Egyptian mau, Siamese, Himalayan, Oriental and Turkish angora cats.

Ocicat; Norwegian forest cat; Selkirk Rex; Abyssinian; Bombay; Havana brown.

Hamsters; guinea pigs; geckos; rabbits; parrots and ferrets.

Pet pig; hedgehog; pygmy goat; capybara; minidonkey; skunk.

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.

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 autoimmune disease; cat receives stem cell therapy.

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.

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.

Dr. Dee puts her mother on a plane to a remote vet clinic in Manley Hot Springs; Rottweiler could have bone cancer; bunny suffers with large abscess; St. Bernard puppies stop by for a visit.

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.

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 gives hope to a concerned owner when their dog is diagnosed with cancer; the team cares for a litter of abandoned kittens; Dr. Amy solves the mystery of a beloved cat's painful injury; Dr. Jeff and Hector help a rescued tiger find love.

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. Dee sets off on her first adventure as a new pilot to treat animals in the Arctic Circle; aging Border Collie; disabled Siberian husky.

A local radio station helps Dr. Dee find a forever home for a special needs dog; cattle turns hostile during castration; Dr. Dee examines a recently awakened black bear.

Dr. Jeff gives hope to a concerned owner when their dog is diagnosed with cancer; the team cares for a litter of abandoned kittens; Dr. Amy solves the mystery of a beloved cat's painful injury; Dr. Jeff and Hector help a rescued tiger find love.

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. Dee sets off on her first adventure as a new pilot to treat animals in the Arctic Circle; aging Border Collie; disabled Siberian husky.

A local radio station helps Dr. Dee find a forever home for a special needs dog; cattle turns hostile during castration; Dr. Dee examines a recently awakened black bear.

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.