PR AMO team hunts down boat loaded with $41 million of coke; CBP gets a tip about money smugglers and finds cocaine and people inside car trunks.

HSI performs an undercover drug sting; CBP finds cocaine in Rio Grande Valley.

CBP's K9 sniffs out hidden cash; HSI intercepts a $2 million drug deal.

CBP in JFK and HSI in San Diego tackle fentanyl crisis on opposite coasts.

Officers make a stunning discovery; a tourist's papers hint at her true plans for coming to Canada.

A senior has some unfriendly gear in his RV; a Canadian returning from Panama tells all.

An American is busted trying to catch a different kind of trip; officers help a tipsy traveler.

A heavy automobile container hints at trouble; A student's stash of food brings him discomfort.

Shawn and the dive team are working on a secretive job for the Canadian Navy, but it's a logistical nightmare with divers, shore connections and classified hardware being lowered down the ocean floor.

A chase of the thief who stole the Mona Lisa and how it was recovered.

David reveals the Bugatti in the Middle East; Ian lands a big break with George Barris' rocket-powered Turbo-Sonic.

During a ferry ride in Vancouver, Scott and Sheldon meet an Aboriginal artist with a bag of unique carvings.

Officers make a stunning discovery; a tourist's papers hint at her true plans for coming to Canada.

A senior has some unfriendly gear in his RV; a Canadian returning from Panama tells all.

An American is busted trying to catch a different kind of trip; officers help a tipsy traveler.

A heavy automobile container hints at trouble; A student's stash of food brings him discomfort.

Mariana investigates a new breed of cocaine trafficker: lady bosses.

Mariana investigates the criminals destroying the Amazon rainforest.

Mariana explores the billion-dollar underworld of illegal fishing.

Mariana meets the craftsmen who make and sell the world's finest counterfeit U.S. dollars.

Mariana follows a famous cocaine smuggling route in this enhanced episode.

Mariana uncovers American guns smuggled to Mexico.

Enhanced; Mariana tracks a new wave of underground steroids.

Mariana investigates the illicit trade in human organs.

Three real world disasters dissected; nuclear missile, ferry, oil rig.

A look into how prehistoric land mammals evolved into top ocean predators.

Mariana investigates the illicit trade in human organs.

Three real world disasters dissected; nuclear missile, ferry, oil rig.

A look into how prehistoric land mammals evolved into top ocean predators.

Mariana investigates a new breed of cocaine trafficker: lady bosses.

Mariana investigates the criminals destroying the Amazon rainforest.

Mariana explores the billion-dollar underworld of illegal fishing.

Mariana meets the craftsmen who make and sell the world's finest counterfeit U.S. dollars.

A traveler returns with a surprise; Marine officers come upon an infested container.

A student is failing his customs exam; officers prevent an artifact from going down in history.

The canine unit brings home the bacon; A traveler discovers she's got a friend in high places.

Joining dedicated teams of agents at Canada's airports and seaports as they intercept visitors smuggling illegal contraband and tourists with tall stories.

Discover the secrets behind the scenes at the Vatican Museum.

Two mechanics butt heads; a Rat Rod rises from the junkyard; a new sheriff lays down the law.

The guys meet the Tin King of Brantford and the Prince of Puppets in Peterborough; the guys hire a new employee and put him to work on a massive public sale of collected treasures.

A traveler returns with a surprise; Marine officers come upon an infested container.

A student is failing his customs exam; officers prevent an artifact from going down in history.

The canine unit brings home the bacon; A traveler discovers she's got a friend in high places.

Joining dedicated teams of agents at Canada's airports and seaports as they intercept visitors smuggling illegal contraband and tourists with tall stories.

A new discovery in the Baltic Sea reveals the story of a lost treasure.

Archaeologists on land and sea reveal secrets of the infamous Alamo siege.

A lost Kingdom and an underwater cave reveal secrets about the ancient Maya.

Revealing the drug smuggling routes that make cartels billions each year.

Archaeologists uncover the truth behind the legend of a treasure ship.

Lost wrecks reveal how the Mob gained power and wealth in 1920s America.

From Patagonia to Canada, paleontologists uncover the Real Jurassic Americas.

Draining Alaskas extreme north reveals the graveyard of a tragic fleet.

Grace O'Malley defies gender conventions of her day and becomes the most feared and respected leader of both the land and the sea, eventually rising to Chieftain.

In the Azores, the team follows the elusive sperm whales to their hunting grounds a mile beneath the surface, where they discover the secret lives of these deep-diving whales.

Tommy Thompson is labeled a hero, but his dreams soon crumble around him.

Grace O'Malley defies gender conventions of her day and becomes the most feared and respected leader of both the land and the sea, eventually rising to Chieftain.

In the Azores, the team follows the elusive sperm whales to their hunting grounds a mile beneath the surface, where they discover the secret lives of these deep-diving whales.

A new discovery in the Baltic Sea reveals the story of a lost treasure.

Archaeologists on land and sea reveal secrets of the infamous Alamo siege.

A lost Kingdom and an underwater cave reveal secrets about the ancient Maya.

Revealing the drug smuggling routes that make cartels billions each year.

A captain navigates troubled waters when he forgets to declare himself to the authorities.

An American arrives at customs with firearms; a traveler makes a breathtaking statement.

An irritated traveler pushes officers to the limit; Haitian fruits may contain more than vitamins.

Packaged sweets at JFK Airport; a Dutch visitor travels stateside; mistaken identity for a traveler in Washington State; party girls' plans are deflated.

Searching for Ramesses' tomb; re-creating the last moments of an ancient king's life.

David travels to Northern Italy in search of rare Alfa Romeo parts; the owner of a Shelby Mustang GT350 makes a strange request.

The Pickers encounter an obsessive collector of Coca-Cola memorabilia; examples of elegant American art glass command a high price.

A captain navigates troubled waters when he forgets to declare himself to the authorities.

An American arrives at customs with firearms; a traveler makes a breathtaking statement.

An irritated traveler pushes officers to the limit; Haitian fruits may contain more than vitamins.

Packaged sweets at JFK Airport; a Dutch visitor travels stateside; mistaken identity for a traveler in Washington State; party girls' plans are deflated.

Dr. Oakley treats a cherished breeding bull and a cat with a worrying lump.

Dr. Oakley vaccinates a jet-setting chihuahua, tries to outsmart a shifty coyote and meets a cow with an unusual growth.

Dr. Oakley treats a baby elk with a limp, performs a dental on a musk ox and gives a roadside pedicure to a pig.

Dr. Oakley transports baby bison to their new home and treats a pair of therapy reindeer that help a veteran with PTSD.

Dr. Oakley treats a pair of debilitated chickens and a Highland cow that loves to give hugs; a reindeer farm hopes to turn its luck around.

Ahead of Sierra's departure for vet school, the team treats an emu, a dog with a bulging eye and a reindeer with a cracked antler.

Dr. Oakley treats a Sitka deer with a limp and a feisty alpaca-llama cross.

The clinic braces for a snowstorm as Doc races to an emergency farm call.

In this extended version, two violent dogs continue to threaten each other.

A cattle dog protects her fearful owner, and a family finds a perfect pal.

The clinic braces for a snowstorm as Doc races to an emergency farm call.

Two brothers clash in deadly attacks.

A cattle dog protects her fearful owner, and a family finds a perfect pal.

Dr. Oakley treats a cherished breeding bull and a cat with a worrying lump.

Dr. Oakley vaccinates a jet-setting chihuahua, tries to outsmart a shifty coyote and meets a cow with an unusual growth.

Dr. Oakley treats a baby elk with a limp, performs a dental on a musk ox and gives a roadside pedicure to a pig.

Dr. Oakley transports baby bison to their new home and treats a pair of therapy reindeer that help a veteran with PTSD.

Officers don't believe a traveler's claims; a Canadian traveler is upset; clearance issues for a package from China.

A traveler returns from Colombia with a lot of luggage; a pregnant passenger in Detroit; a package from India is halted; a traveler is Washington is questioned.

An auto theft arrest in Detroit; dozens of vials in the JFK Mail Facility; an American traveler has reptiles; a traveler in New York shows signs of smuggling; a family reunites in Detroit.

JFK Airport officials look for drugs in backpacks; a driver in Washington arrives in someone else's vehicle; a Detroit citizen takes a wrong turn.

One of the world's largest collections of art features galleries filled with tragedy, madness and murder.

David heads off to England to check out a royal barn; a dying man reveals his last wish.

The Pickers visit Armstrong, Abbotsford and Mission in British Columbia as they compete to see who can obtain the most manly item; trolley ads, tin litho signs and rare gas pumps are among the unique finds.

Officers don't believe a traveler's claims; a Canadian traveler is upset; clearance issues for a package from China.

A traveler returns from Colombia with a lot of luggage; a pregnant passenger in Detroit; a package from India is halted; a traveler is Washington is questioned.

An auto theft arrest in Detroit; dozens of vials in the JFK Mail Facility; an American traveler has reptiles; a traveler in New York shows signs of smuggling; a family reunites in Detroit.

JFK Airport officials look for drugs in backpacks; a driver in Washington arrives in someone else's vehicle; a Detroit citizen takes a wrong turn.

In the shadow of the Great Pyramid, archaeologists unearth a royal palace.

Archeologists excavate an unexplored burial chamber inside a pyramid.

Archaeologists explore life and death in Ancient Egypt's metropolis, Alexandria.

Archaeologists explore hidden tombs and find spectacular mummies.

Archaeologists unearth new clues about a forgotten dynasty, the Sun Kings.

Archaeologists investigate Egypt's last legendary Queen, Cleopatra.

Archaeologists investigate the mysterious mega tombs of a forgotten era.

A monkey steals food, a lizard surprises a lady and a bear breaks a gate.

Dr. Oakley learns to flip a pig and treats a dog at risk of losing a paw.

Giraffes stop traffic, a lemur has a birthday, and a hippo makes friends.

A monkey steals food, a lizard surprises a lady and a bear breaks a gate.

Dr. Oakley learns to flip a pig and treats a dog at risk of losing a paw.

Giraffes stop traffic, a lemur has a birthday, and a hippo makes friends.

In the shadow of the Great Pyramid, archaeologists unearth a royal palace.

Archeologists excavate an unexplored burial chamber inside a pyramid.

Archaeologists explore life and death in Ancient Egypt's metropolis, Alexandria.

Archaeologists explore hidden tombs and find spectacular mummies.

Darrell's calls in a surprising reinforcement; but can this new team member hack the treacherous ice roads; Hugh has a brush with near disaster.

Humans and animals of the past, including lion tamarinds, Sumatran tigers, and a modern Noah's ark.

The men and women who live side by side with the animals at the Toronto Zoo.

Darrell's calls in a surprising reinforcement; but can this new team member hack the treacherous ice roads; Hugh has a brush with near disaster.

Humans and animals of the past, including lion tamarinds, Sumatran tigers, and a modern Noah's ark.

The men and women who live side by side with the animals at the Toronto Zoo.

Dr. Oakley treats a limping bull bison and a dog with a mammary mass.

Dr. Oakley treats a rescued pig and a dog with a porcupine vendetta.

Dr. Oakley treats an off-the-grid dachshund and an emotional support pig.

Dr. Oakley escorts a horse on a boat and treats a bull with a limp.

Dr. Oakley treats a horse with a limp and an overweight dog.

Dr. Oakley treats a dog with a bloated stomach and a cow with a lumpy jaw.

Dr. Oakley treats a chunky chicken and a calf that was attacked by a bear.

Dr. Oakley preg checks rabbits, helps a sore duck, and relieves a reindeer.

Dr. Oakley treats an enormous bull with a split hoof, an aging elk, and her own family's pet pug.

Dr. Oakley treats a miracle moose and a puppy that was hit by a car.

Dr. Oakley treats a cat that swallowed a string and a pregnant reindeer with cancer.

Donkeys, ducks and dogs, from quirky to jaw dropping.

Dr. Oakley faces a toxic emergency and removes the eye of an alpaca.

Dr. Oakley treats a cat that swallowed a string and a pregnant reindeer with cancer.

Donkeys, ducks and dogs, from quirky to jaw dropping.

Dr. Oakley faces a toxic emergency and removes the eye of an alpaca.

Dr. Oakley treats a limping bull bison and a dog with a mammary mass.

Dr. Oakley treats a limping bull bison and a dog with a mammary mass.

Dr. Oakley treats an off-the-grid dachshund and an emotional support pig.

Dr. Oakley escorts a horse on a boat and treats a bull with a limp.

Darrell continues to teach Reno how to drive the ice roads; bad wiring could sink Alex's cement load; Lisa and Todd run into a a road block.

A warthog gets some company from her mate; Janis cleans off Canadian geese covered in oil.

Lion tamarinds, Sumatran tigers, and a modern Noah's Ark.

Darrell continues to teach Reno how to drive the ice roads; bad wiring could sink Alex's cement load; Lisa and Todd run into a a road block.

A warthog gets some company from her mate; Janis cleans off Canadian geese covered in oil.

Lion tamarinds, Sumatran tigers, and a modern Noah's Ark.

Brad tries to get the lions ready for their inoculations; a goat suffers from infection; breeding tree kangaroos.

The vets attempt to give the lions their shots; measuring breathing capacity; a camel with a belly-ache.

By 1943 Hitler's marauding armies have steamrollered across mainland Europe; the allies can't compete on the battlefield, so the commanders plan an audacious attack on the booming industry, which is producing German tanks, submarines and aircraft.

December 1944 - Hitler launches an all-out assault on the Western front across Belgium and Luxembourg; vastly outnumbered allied platoons face off against entire German battalions in a series of David Vs Goliath attacks.

In May 1940, 400,000 Allied troops are surrounded by Hitler's army on the beaches of Dunkirk; deep in the tunnels under Dover Castle, the Royal Navy plans a rescue mission; success or failure could decide the outcome of the war.

Reconstructing the WWII battle in the skies over Britain, the hunt for the deadly Nazi U-boats, the parachute drop at Arnhem, the Allies' bloody struggle through Normandy, the showdown at the Italian Abbey of Montecassino, and the fight for Poland.

The longest campaign of the war pits the deadly stealth of the Nazi U-boats against the code-breaking genius and long-range bombers of the Allies.

The Allies head into enemy territory after capturing the beaches of Northern France; they embark on a two-month march to liberate Paris.

September 1944: Thousands of troops drop from the skies over the Netherlands, as the Allies launch the largest airborne assault in history.

From the audacious beach landings at Salerno to the mountaintop stand-off at Monte Cassino, the Allies battle to liberate Italy from the Nazis.

From the first shots fired to the horrors of Auschwitz, the battle to free Poland from the grip of the Nazis is one of the toughest of the war.