Wardens crack down on road hunters illegally collecting antlers for profit, while another team trains a canine to assist in enforcement.

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

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

As big game firearm season begins, wardens face a tense investigation into a poacher suspected of illegal deer hunting; racing against time, they combine forces to uncover the truth in the wild.

Wardens crack down on road hunters illegally collecting antlers for profit, while another team trains a canine to assist in enforcement.

While investigating a boat wreck, Warden Jennifer Provaznik discovers a grisly secret; game wardens intervene to save baby turtles being sold on a street corner; a fisherman's oversized fillet sparks suspicion.

Matt Kiel and Michael Serbanic investigate a bizarre lakeside encampment; a day at the beach turns ugly when illegal gillnets are discovered, and Matt Maloney protects a neighborhood from trespassers in the border town of Del Rio.

Motivated by the extraordinary compassion and belief that all animals deserve treatment, the vet and thrift store team of the Regional Animal Protection Society work tirelessly to offer low-income pet families access to life-saving healthcare.

Motivated by the extraordinary compassion and belief that all animals deserve treatment, the vet and thrift store team of the Regional Animal Protection Society work tirelessly to offer low-income pet families access to life-saving healthcare.

Antonio and the team make a mountain cabin safe and build a Japanese-inspired lounge for a blind dog.

The zoo welcomes Edward the bat-eared fox as its newest ambassador animal; Amani the aardvark undergoes dental surgery, and the pelican flock gets a new winter home; a snow day means playtime for the animals and hard work for the zoo staff.

Walter and Will score a deal placing hives at a country club and put their golf skills to the test; Sandy gets a shot at redemption extracting a challenging hive; a vacant house holds an even scarier surprise for Jonathan.

Dr. Lavigne must decide during surgery if a giant schnauzer can keep his ear; a poodle named Jay-Z with suspicious symptoms needs Dr. Blue's help; Dr. Ross removes tumors from a rat; the vets pose with pets for a calendar to help animals in Haiti.

Dr. Ross closely examines a duck with a lump in his throat; Dr. Lavigne uses x-ray film during surgery in a very unexpected way; Dr. Blue tries to uncover a guinea pig mystery at the clinic; Dr. Lavigne's wife joins a local roller derby team.

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.

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.

Redneck designs a RV aquarium; the team builds a large indoor tank that holds both alligators and sharks.

Wayde and Brett design a multipurpose tank for a fitness mogul; an Alabama casino requests a tank with a scaled replica of a historical lighthouse.

Wayde and Brett transport a fully operational beer fermenter, then head south to create a doughnut-shaped tank.

A Florida medical facility desires a tank in the shape of a syringe; the guys must construct an aquarium for their new shop.

Wayde and Brett create two aquariums for a mall's new food court, then work to transform a vintage popcorn machine into a tank.

Mike visits an Equine Research Facility to help with testing athletic horses, including helping with blood testing during a fitness test and checking pH levels in feces.

Mike heads to a San Francisco dump to learn how hawks are employed as a seagull-removing method; then he is off to work on a mobile meat processing truck.

Mike works as a fish squeezer with the New Mexico Department of Game and Fish; the ancient art of pet acupuncture.

Mike takes on his latest challenge, traveling to Utah to take on the surprisingly dirty job of being a paleontologist.

Mike visits an Equine Research Facility to help with testing athletic horses, including helping with blood testing during a fitness test and checking pH levels in feces.

Mike heads to a San Francisco dump to learn how hawks are employed as a seagull-removing method; then he is off to work on a mobile meat processing truck.

Mike works as a fish squeezer with the New Mexico Department of Game and Fish; the ancient art of pet acupuncture.

Mike takes on his latest challenge, traveling to Utah to take on the surprisingly dirty job of being a paleontologist.

Wayde and Brett design a multipurpose tank for a fitness mogul; an Alabama casino requests a tank with a scaled replica of a historical lighthouse.

Wayde and Brett transport a fully operational beer fermenter, then head south to create a doughnut-shaped tank.

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 Brewer family's home doubles as a rescue for dozens of parrots; Antonio helps a family reclaim their kitchen and dining room, and builds a huge geodesic dome for rescue parrots to spread their wings.

Rescued harbor seal pup Sydney finds a new family at the New York Aquarium; zoo staff are challenged when a skittish Amur tiger struggles to adjust to its new home.

Before Walter can celebrate his birthday, he and Will must extract a hive from a firehouse; Walter's sons Bodhi and Odin pitch in to handle underground bees; Meredith tackles her first hive on the roof of a church; Walter's mom comes to town.

Dr. Blue must figure out what's wrong with Niko, a lethargic dog that may have eaten his mom's shorts; Dr. Lavigne operates on a husky with a torn ligament; Dr. Ross faces an emergency with his own family pet.

Dr. Blue performs a difficult surgery on a Dalmatian being weighed down by a grapefruit-sized tumor on his head; Dr. Ross brings his family together to get a service dog for his brother Tedric, who has been suffering from seizures his whole life.

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.

Tia and Matt are called upon to rescue some dogs from the home of their recently deceased owner; a potential adopter is looking for a dog who is able to thrive at a bed and breakfast.

Fisherman and adventurer Jeremy Wade travels to Lake Garda in northern Italy to investigate a 16th-century monster fish.

Jeremy Wade travels to the island of Tasmania in search of a colossal freshwater beast on the verge of disappearing forever.

Something is wiping out the fish in Australia's Fitzroy River, and Jeremy is determined to discover the cause.

High up on an ice-covered Canadian mountain in the middle of the night, a grizzly bear charges professional climber Greg Boswell; in upstate New York, a rabid coyote attacks a retired nurse.

Colorado park ranger Andy Peterson is hiking when he crosses paths with a mountain lion and its prey; in Vancouver, Kari Toft is walking her dog just steps from her home when she is attacked by a vicious raccoon.

Twenty miles into a marathon in a remote part of New Mexico, Karen Williams finds herself caught between a bear and her cub; Steve Campbell is working on an oil pipeline in Alberta, Canada, when a mountain lion attacks him.

A bull shark attacks a triathlete who is training in Alabama; a father fights to survive after a rattlesnake bites him; a giraffe attacks a couple in Zambia; a girls' trip turns deadly in Cancun.

Outside Corpus Christi, Texas, Jeremy Sutcliffe is working in his garden when a rattlesnake bite puts him on the brink of death; while spearfishing in the Bahamas, Kent Bonde is blindsided by a bull shark that tears the calf muscle from his leg.

Jordan Carbery is investigating a noise outside his cabin and encounters a massive grizzly bear; Zanele Fox and her husband take a river tour when she is thrown from her raft and ravaged by a crocodile.

Twenty miles into a marathon in a remote part of New Mexico, Karen Williams finds herself caught between a bear and her cub; Steve Campbell is working on an oil pipeline in Alberta, Canada, when a mountain lion attacks him.

A bull shark attacks a triathlete who is training in Alabama; a father fights to survive after a rattlesnake bites him; a giraffe attacks a couple in Zambia; a girls' trip turns deadly in Cancun.

Outside Corpus Christi, Texas, Jeremy Sutcliffe is working in his garden when a rattlesnake bite puts him on the brink of death; while spearfishing in the Bahamas, Kent Bonde is blindsided by a bull shark that tears the calf muscle from his leg.

Jordan Carbery is investigating a noise outside his cabin and encounters a massive grizzly bear; Zanele Fox and her husband take a river tour when she is thrown from her raft and ravaged by a crocodile.

Jeremy Wade travels to the island of Tasmania in search of a colossal freshwater beast on the verge of disappearing forever.

Something is wiping out the fish in Australia's Fitzroy River, and Jeremy is determined to discover the cause.

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.

Antonio designs a multi-functional space for the bunnies, ferrets, cats and dogs that live under one roof.

A keel-billed toucan confiscated from smugglers begins a new life at the zoo; Troody the young red kangaroo has big shoes to fill; a herd of Bactrian fawns prepares to go on exhibit; the gorillas enjoy a new form of entertainment.

To secure a game-changing deal with a distillery, the bee team hustles to supply a huge shipment of honey; Walter, Ramon and Jonathan extract a king-sized hive at a Renaissance fair while Will tackles a decade's worth of bees in the trunk of a tree.

Dr. Blue quarantines a dog who may be suffering with the flu; Dr. Ross treats a wobbly Boxer whose limbs never fully formed; Dr. Lavigne thinks a robot vacuum is to blame for a stressed-out cat and performs emergency surgery to save a puppy's life.

Dr. Lavigne is tasked at removing a 6-pound mass from a small dog; Dr. Blue and wife welcome their first daughter to the family; the vets make a house call to a llama that's causing some drama; Dr. Ross extracts 14 teeth from a mini poodle.

Tia gets a phone call about an emaciated pit bull, which turns out to be one of the worst cases she has ever seen; Earl attempts to convince the NY State authorities that a prison dog program is in their best interest.

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

Pete teams up with Make-A-Wish and the local fire department of Flagstaff, Arizona to grant an 8-year-old's wish of a whimsical treehouse masterpiece inspired by "The Boxtrolls" movie.

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

When all the units at a treehouse bed-and-breakfast are booked, Pete finds a way to provide an engaged couple with a structure for their upcoming wedding and honeymoon.

An Irish family in California's Orange County desires a Celtic-themed cottage in their backyard olive tree; Pete's circular design includes a fireplace and a rainmaker.

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.

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.

Pete builds ski lodge-style treehouse complete with an indoor-outdoor fireplace and a rooftop snowmaker for a ski-loving family.

An Irish family in California's Orange County desires a Celtic-themed cottage in their backyard olive tree; Pete's circular design includes a fireplace and a rainmaker.

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.

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.

Pete builds ski lodge-style treehouse complete with an indoor-outdoor fireplace and a rooftop snowmaker for a ski-loving family.

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.

Exploring the canine kingdom; cute dogs; latest videos of guilty pooches; mutts with unusual pals.

A compilation of pet animals from America, including technologically savvy cats, friendly dogs and more.

The team is determined to have Gibson the sea otter pup discover his independence as he separates from his pal, Mara; the African penguins head off-site for spring cleaning; Thor the moray eel proves he's the ultimate escape artist.

A sea lion called Finn has tummy trouble and the team feeds him a snack that will help them investigate why; Big Mama, the guitarfish, may be living up to her name; the boa-duo, Ripley and Ridley, receive a new home.

Technology is brought to the aquarium to monitor beluga whale activity; Maggie the small-clawed otter's training kicks in when receiving a shot and Morty the sea star has a checkup after suspicious growths form.

The African penguin colony greets its newest additions after a successful mating season; sea otter Mara is presented to the rest of the raft, and the bottlenose dolphin population in Florida is examined.

Tensions run high when Dr. Blue visits a cattle ranch to castrate five adult bulls; Dr. Ross treats a hen with an injury; a puppy needs a serious surgery after being hit by a car.

Dr. Blue surprises his wife with a romantic wedding vow renewal in Las Vegas; a Schnauzer being boarded at the clinic needs medical help from Dr. Lavigne; Dr. Ross treats a very ornery parrot; a senior dog with a recurring eye mass.

Dr. Blue castrates five adult bulls on a vegan cattle ranch; a scary bulldozing occurs; a hen with a rough-mating injury; a young puppy is hit by a car.

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.

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

Dr. Jeff and the team set out to transform an abandoned restaurant in an old mining town into a clinic to serve the mountain community; Dr. Baier treats a sneezing parrot; Dr. Jeff hopes to save a Yorkie's broken ankle from amputation.

A dog named Mac is rushed in after being hit by a car; Dr. Amy performs surgery on a dog named Rebel who was impaled with a stick, while Dr. Baier helps Kino, a hound in heat.

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.

Coco the Frenchie needs Dr. Jeff's help to remove a large lump from her face; vet tech Christine faces her fear of birds while helping pigeons from Rocky Mountain Adventures; Drs. Jeff and Baier aid a red-back turtle with an infected foot.

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

A dog named Mac is rushed in after being hit by a car; Dr. Amy performs surgery on a dog named Rebel who was impaled with a stick, while Dr. Baier helps Kino, a hound in heat.

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.

Coco the Frenchie needs Dr. Jeff's help to remove a large lump from her face; vet tech Christine faces her fear of birds while helping pigeons from Rocky Mountain Adventures; Drs. Jeff and Baier aid a red-back turtle with an infected foot.

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

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 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.

Home videos highlight the most magnificent dogs on the Internet.

Searching for the most adorable cat videos ever posted on the web.

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.

South Africa offers deep insight into our sapient ancestors' hunter-gatherer history; Dan Cabela retraces the footsteps of humanity's forebears.

Staking out a marijuana grow in the middle of the woods; searching for a missing swimmer as a storm rolls in; avoiding injury while handling a particularly prickly animal.

A hunter is too close to a school and damaging property; investigating reports of a bear being fed in a residential area; questioning a man about illegal owl parts.

Officer Jim Cyrs and Lt. Saunders rush to the scene of an ATV accident; Officer James Benvenuti works with K-9 Cora to track down a suspect; Officer Eric Hannett gets backup from Lieutenant Bill Boudreau when dealing with a suspicious fisherman.

Lt. Boudreau and Officer Hannett confront a hunter they suspect illegally shot a pheasant; Officer Egan receives a call from a Canadian hunter who shot a moose that crossed the border; a community unites in the search for a missing teenager.

Officer Towne responds to a call about a hunter cornered by a pack of dogs; Officer Hannett tries to coax the truth from suspicious hunters; Lt. Boudreau leads a large night hunting operation that takes an unexpected turn.

Lt. Boudreau and Officer Hannett track a hunter at an illegal bait site; a teenage hunter with a changing story; a routine patrol in icy conditions becomes a life-changing event for Officer Lucas.

The New Hampshire Fish and Game Dive Team fights harsh conditions while on a double drowning mission at the Merrimack River; Officer Egan rescues a baby owl after the nest is disturbed; a family of ATV riders is busted for breaking the law.

In Newton, N.H., Officer Letourneau receives an interesting tip about a woman in possession of baby flying squirrels; things take a turn for officers investigating an ATV accident; an OHRV rider is caught trespassing on restricted trails.

When a reckless UTV strikes Officer Holmes from behind, Officer Mancini helps him seek medical treatment while handling the crime scene; a car accident kills a doe leaving two twin fawns vulnerable, and firecrackers give a veteran intense flashbacks.

Michigan conservation officers monitor elk hunters across early and late seasons; a blind hunter secures a prized bear tag with help from a group of kids and veterans; officers patrol snowmobilers and ice anglers braving frigid conditions.

Michigan Conservation Officers protect and patrol the most precious natural resources in one of the nation's most remote areas.

Following Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

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

Michigan conservation officers patrol state land, ensuring hunting blinds are properly marked and removed at season's end; they discover a blind with multiple violations, sparking an investigation into the hunter's compliance with regulations.

Michigan's Conservation Officers unite to protect the state's resources amid winter's chill and a busy deer season; Great Lakes officers aid divers recovering a Tuskegee Airmen's plane, leading to a moving monument unveiling.

Following Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

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

Michigan conservation officers patrol state land, ensuring hunting blinds are properly marked and removed at season's end; they discover a blind with multiple violations, sparking an investigation into the hunter's compliance with regulations.

Michigan's Conservation Officers unite to protect the state's resources amid winter's chill and a busy deer season; Great Lakes officers aid divers recovering a Tuskegee Airmen's plane, leading to a moving monument unveiling.

In Newton, N.H., Officer Letourneau receives an interesting tip about a woman in possession of baby flying squirrels; things take a turn for officers investigating an ATV accident; an OHRV rider is caught trespassing on restricted trails.

When a reckless UTV strikes Officer Holmes from behind, Officer Mancini helps him seek medical treatment while handling the crime scene; a car accident kills a doe leaving two twin fawns vulnerable, and firecrackers give a veteran intense flashbacks.

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.

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.

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 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.

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.

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.

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 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.

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.

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.

A suspicious driver leads wildlife agents on a high-speed chase through a national forest. Goose hunting guides are caught in a repeat offense, and a routine stop turns treacherous when a suspect is discovered concealing a firearm.

A bizarre discovery inside an abandoned cooler escalates a littering probe. Wildlife agents patrolling in dense fog are thrown into a dangerous encounter, and a burglary investigation uncovers an illegally taken deer.

A suspicious man fleeing on the levee after dark puts wildlife agents in danger. A first-time bowhunter could lose his kill over a major violation, and agents question a duck hunter with an attitude who seems to be hiding something.

Suspicious shotgun blasts on Catahoula Lake lead wildlife agents on a high-speed chase. A trail of beer cans point to a pair of hunters with multiple violations, and on the bayou, agents catch a lawbreaking crawfisherman.

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.

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.

Suspicious shotgun blasts on Catahoula Lake lead wildlife agents on a high-speed chase. A trail of beer cans point to a pair of hunters with multiple violations, and on the bayou, agents catch a lawbreaking crawfisherman.

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.

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.

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.

A suspicious driver leads wildlife agents on a high-speed chase through a national forest. Goose hunting guides are caught in a repeat offense, and a routine stop turns treacherous when a suspect is discovered concealing a firearm.

Dexter the dog has serious breathing problems; the team of pickers counting on abandoned storage locker goods gets an unfortunate surprise; Halo the chihuahua discovers more than exercise in the local dog park.

A chihuahua named Rue has a leg injury; having drained his savings, owner Ken is on the verge of surrendering his sick cat, Nagi; the picking team uncovers a bonanza of bikes with an unexpected past.

Antonio Ballatore showcases a number of incredible pet-centric builds that have inspired his own creations.

Antonio helps a family who opened their home to neighborhood dogs create the ultimate backyard dog park with custom dog houses, a paddling pool for hot summer days, and a slick structure of ramps and tunnels to keep everyone entertained and active.

The doctors prepare to open a new clinic but are apprehensive about a promise they made to each other regarding the event; Dr. Ross tends to a frizzle hen's eye problem; Dr. Blue is alarmed by a bulldog's burst mammary gland.

Critically injured koalas are rescued from Australia's blazing bushfires; two-tonne rhino calf named Kipenzi wreaks havoc in the zoo trucks; snow leopard Miska reveals an exciting secret.

After weeks of being closed due to the global pandemic, the Irwins race to prepare for the reopening of the zoo; Robert helps deliver a litter of newborn tiger cubs, while Bindi handles a sudden crisis at the wildlife hospital.

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

Adopter comes to VRC hoping to fill the void in her heart after her dog passes away; Louise and Matt rescue a hit-and-run dog; the dog Tia brings with her when she appears on "The Daily Show With Jon Stewart" gets sick.

A fugitive, three bear cubs on the loose, illegal poachers and a junkie with a hidden stash keep Washington state's Fish and Wildlife Police busy.

The Washington DFW police take on an illegal elk shooting, a suicidal citizen and convicted felons looking to poach.

Bear near family home is taken on by the FWP's bear dog unit; interstate is disrupted by unstable woman; fisherman hooks endangered fish; tribal crabbers trap out of season.

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.

In western Montana, wardens navigate a dispute over a dead elk stolen by a grizzly; in region two, they investigate the unlawful shooting of a female elk, uncovering key details.

Region 1 wardens are left speechless after witnessing a squatter on public land and are on high alert during the annual Yellowstone River Boat Float; during the pursuit of an upland game, a license check comes up empty and the wardens scramble.

During Montana's antler shed hunting season, the wardens are kept on their toes while locating bears, mountain lions and lost hunters; warden Bryan Golie questions an angler in search of the truth.

The wardens of Region 1 and 3 set off to educate the public on Montana's aquatic invasive species population. Meanwhile, a tribute is made for one of Montana's honorary wardens.

In western Montana, wardens navigate a dispute over a dead elk stolen by a grizzly; in region two, they investigate the unlawful shooting of a female elk, uncovering key details.

Region 1 wardens are left speechless after witnessing a squatter on public land and are on high alert during the annual Yellowstone River Boat Float; during the pursuit of an upland game, a license check comes up empty and the wardens scramble.

During Montana's antler shed hunting season, the wardens are kept on their toes while locating bears, mountain lions and lost hunters; warden Bryan Golie questions an angler in search of the truth.

The wardens of Region 1 and 3 set off to educate the public on Montana's aquatic invasive species population. Meanwhile, a tribute is made for one of Montana's honorary wardens.

The Washington DFW police take on an illegal elk shooting, a suicidal citizen and convicted felons looking to poach.

Bear near family home is taken on by the FWP's bear dog unit; interstate is disrupted by unstable woman; fisherman hooks endangered fish; tribal crabbers trap out of season.

A mystery illness afflicting Ceelo the Doberman puppy has the entire RAPS vet team in detective mode; Cardamom, a Shar Pei puppy, demonstrates why cute can be complicated; the pickers uncover a royal treasure in one of the abandoned bins.

A dog named Goobs wins the RAPS team's hearts; Shadow, a Pitbull mix, has a potentially cancerous lump on his neck; Lilou the cat gets a diagnosis to explain her aggressive and unusual behavior; Karen and her team of pickers hit a jewelry jackpot.

Antonio and his team design and build an elaborate system of tunnels and towers spanning two rooms for a family and their seven chinchillas.

A couple wants their savannah cat and foster kittens to safely enjoy the outdoors; Antonio's solution is to build an intricate system of outdoor catwalks and double-decker enclosures with cat-friendly plants, natural climbing surfaces and toys.

Police rescue a turtle caught on fishing line, and it's up to Dr. Ross to unhook him; Dr. Blue waits for test results after performing dental surgery on a loveable dachshund; Dr. Lavigne gives a stray cat first-class treatment.

Injured elephant Man-Jai needs emergency tusk surgery; massive clean-up operation begins for a family of hippos; bent beak jeopardizes a couple of penguins; strange resident gets VIP treatment.

Bindi and the family plan an emotional surprise for Terri in the Crocoseum; Robert helps the zoo's three new adorable tiger cubs.

Tia takes a new rescue to the vet and receives heart-wrenching news; community rallies to raise funds for Earl's surgery; Mariah must conquer her greatest fear when an adopter with an unique challenge arrives.

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.

R&B singer Keyshia Cole dreams of having a saltwater aquarium in her home, and Wayde and Brett endeavor to make her dreams come true.

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.

Businessman Brad Jennings builds a new office and wants to top it off with three tanks from ATM; Wayde and Brett must come up with three complementary interiors including one with a working fireplace.

Three-time world champion boxer Fernando Vargas asks Wayde and Brett to make a boxing glove-shaped tank for his boxing gym in Las Vegas; this challenge goes well beyond the ring.