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A tough choice could be a big help for the four smiths, as they have the option of tackling a more difficult first round challenge in exchange for an easier second one.

Rick checks out a German two-handed sword. Built in the early 1600s, will he execute a deal for this antique weapon or lose his edge?

A tough choice could be a big help for the four smiths, as they have the option of tackling a more difficult first round challenge in exchange for an easier second one.

Brandon and Lori return to Boston and square off against his former protégé Wade. The bad blood may just erupt into a full-out brawl on the auction floor.

The score of a lifetime is hidden in the back of what already appears to be a great locker, but when the bidding heats up, will our auction heroes have the cash to stay in this game?

Empire Builders brings to life Great Empires, discovering how they were built, for what purpose, and what they reveal about the empire's rise and fall.

The carvers are pushed to extremes when they are asked to depict polar opposite ideas in one cohesive carving. As the judges' expectations grow higher, so does the pressure to win.

The buyers head to Arcadia, where Darrell gives and takes, Ivy's prospects soar, plus Rene and Casey find a his and hers locker.

Air Force medic Dameyon Beaman sees windows that seem to open on their own, and hears screams. He learns the hospital he's in is rumoured have run experiments to create super soldiers. Were those events related?

US Navy Boatswain Mate, Robert Young, witnesses a strange green fog in the Bermuda triangle, and experiences a spiritual warning that saves his life.

Brandon and Lori return to Boston and square off against his former protégé Wade. The bad blood may just erupt into a full-out brawl on the auction floor.

The score of a lifetime is hidden in the back of what already appears to be a great locker, but when the bidding heats up, will our auction heroes have the cash to stay in this game?

Empire Builders brings to life Great Empires, discovering how they were built, for what purpose, and what they reveal about the empire's rise and fall.

All over the world, there are giant monoliths that our ancestors carved. Did they serve some kind of ritual function? Were they intended to honour the gods? Or designed to conduct energy?

For centuries archaeologists and explorers have been obsessed with locating ancient cities. How does a once-thriving community become a lost city? What secrets might ruins reveal about human history?

Professor Alice Roberts looks at the rise of the Roman Empire, and experts investigate newly discovered battlegrounds in Britain and Spain to find out how Rome defeated her enemies.

A tough choice could be a big help for the four smiths, as they have the option of tackling a more difficult first round challenge in exchange for an easier second one.

It's a night of sheer terror as four unsuspecting bladesmiths find themselves caught in a competition straight out of the scariest horror movie you can imagine.

A jacket from the first-ever Pro Bowl gets thrown into the shop. Will Corey score this piece of football history or will he get sidelined?

Pendants from the first two Super Bowls rush into the shop. Rick and Corey check out a pair of Igorot spears and the Old Man gets flooded with birthday gifts.

Pendants from the first two Super Bowls rush into the shop. Rick and Corey check out a pair of Igorot spears and the Old Man gets flooded with birthday gifts.

The oldest facility in Los Angeles is where the newest buyers make their debut. Brandi and Jarrod try to piece their way to a win.

Marty desperately searches for a bull moose that vanished in thick brush, Mike hustles to pack out the meat from a bull elk before it can be scavenged by brown bears.

Joey and Zak try to cash in on the full moon feeding frenzy. Daniel seeks revenge on Luna Bull. Pickle's superstitions come back to haunt her.

US Navy Boatswain Mate, Robert Young, witnesses a strange green fog in the Bermuda triangle, and experiences a spiritual warning that saves his life.

The carvers are pushed to extremes when they are asked to depict polar opposite ideas in one cohesive carving. As the judges' expectations grow higher, so does the pressure to win.

A jacket from the first-ever Pro Bowl gets thrown into the shop. Will Corey score this piece of football history or will he get sidelined?

Pendants from the first two Super Bowls rush into the shop. Rick and Corey check out a pair of Igorot spears and the Old Man gets flooded with birthday gifts.

Not even the 'cupped hands' of San Bernardino can save Mary's fortune, but Ivy manages to scrap together a bit of coin, while Kenny finds all the magic.

The girls have a newlywed-themed surprise for Emily. Rene reels in a huge locker, while Darrell tests his bicycle knowledge... and wins.

The oldest facility in Los Angeles is where the newest buyers make their debut. Brandi and Jarrod try to piece their way to a win.

A jacket from the first-ever Pro Bowl gets thrown into the shop. Will Corey score this piece of football history or will he get sidelined?

Pendants from the first two Super Bowls rush into the shop. Rick and Corey check out a pair of Igorot spears and the Old Man gets flooded with birthday gifts.

Four smiths turn some rusty old nails into a pristine knife. After their weapons are hammered in testing, the surviving competitors recreate the terrifying North African Tuareg Takoba.

A signed photograph of Howard Hughes flies into the shop. Rick takes his best shot when a Marlin rifle triggers his interest, and Rick purchases an old model train.

A medal believed to be a Polish White Eagle soars into the shop. With no time to call an expert, Rick must decide whether to go all in or sit this one out.

In Victorville, Brandi and Jarrod's mischievous side emerges. Ivy grabs a locker that no one else can tolerate, while Mary puts the new guy in his place.

Matty Blake meets with the team to delve deeper into the shocking moment when they witnessed an unidentified aerial phenomenon entering and then exiting a rocky mesa on the property.

An incredible legend about Skinwalker Ranch is highlighted by Dr. Travis Taylor as he recounts the evidence the team has collected which could prove that it is actually true.

These are the closest encounters of all. They appeared. They took me. I didn't ask for any of it and I've never been the same again. To call abductees 'witnesses' would be a vast understatement.

While on patrol in Chechnyan forest, a Russian infantryman sees mysterious lights and fights an unknown presence that has a hypnotising effect.

First up, a fashion show, as the carvers craft wearable wooden helmets modelled by host Adam Beach. Then the carvers travel back in time to create a story of an object's evolution throughout history.

A signed photograph of Howard Hughes flies into the shop. Rick takes his best shot when a Marlin rifle triggers his interest, and Rick purchases an old model train.

A medal believed to be a Polish White Eagle soars into the shop. With no time to call an expert, Rick must decide whether to go all in or sit this one out.

The buyers hit Dan's home town, and the Vegas Ladies' locker really takes off. Kenny's purchase sets his wallet alight.

It's the hottest day ever in Riverside and Kenny starts seeing things. Ivy gives Mary a boost, while Shana and Edwina stumble across their own paradise.

In Victorville, Brandi and Jarrod's mischievous side emerges. Ivy grabs a locker that no one else can tolerate, while Mary puts the new guy in his place.

Indio, California, proves to be extremely interesting for Dave. Brandi and Jarrod find the ultimate stash, while Mary's locker misfires.

Winning the quick carves have become more important than ever. To kick things off, the carvers participate in the soap box derby, creating and racing cars made of wood.

In the quick carve, the carvers are asked to make musical instruments. The master carve leaves them spinning as they create fantastical carousel animals ready to ride.

Things get wet and wild with a quick carve water feature challenge. The master carve gets personal as the carvers bring their family story to life with a difficult technique.

The carvers are pushed to extremes when they are asked to depict polar opposite ideas in one cohesive carving. As the judges' expectations grow higher, so does the pressure to win.

First up, a fashion show, as the carvers craft wearable wooden helmets modelled by host Adam Beach. Then the carvers travel back in time to create a story of an object's evolution throughout history.

Four smiths have to make knives out of sledgehammers. After the blades are smashed and bashed in a brutal round of testing, the two surviving smiths must recreate the Polish War Hammer.

This time, four smiths won't know what material they're working with until they open up a crate and discover one of any number of salvaged metals inside.

A tough choice could be a big help for the four smiths, as they have the option of tackling a more difficult first round challenge in exchange for an easier second one.

It's a night of sheer terror as four unsuspecting bladesmiths find themselves caught in a competition straight out of the scariest horror movie you can imagine.

Four smiths turn some rusty old nails into a pristine knife. After their weapons are hammered in testing, the surviving competitors recreate the terrifying North African Tuareg Takoba.

Join a team of experts as they use the latest scientific techniques to solve the greatest mysteries of the ancient world's naval technology.

Joey and Zak try to cash in on the full moon feeding frenzy. Daniel seeks revenge on Luna Bull. Pickle's superstitions come back to haunt her.

Sometimes the strangest things on Earth...are happening just below its surface. From tunnels carved by giant sloths to desperate attempts to stop the dead from rising again.

Records show California has the most UFO sightings. From Joshua Tree, where people have reported more sightings per capita to Mount Shasta, whose residents experience the longest visitations.

The South Yorkshire and Derbyshire border was once the boundary between north and south England. It was also the site of the magnificent hill fort of Carl Wark.

A richly attired but mutilated body is pulled from the Tiber River. He would soon be identified as one Borgia: a son of the head of the holy Roman empire Pope Alexander the Sixth.

Mary bumps into some vintage art, Ivy adds to his stamp collection and Kenny once again faces his fears.

The Gambler returns to form in Huntington Beach. Rene gets on everyone's bad side, while Ivy's prospects are cloudy at best.

Brandi and Jarrod uncover an Illuminati-ng stash. Dave does what he does best, while Mary finally gets the help she needs.

Mary tries to impress a client, Rene finds protection from predators, and Ivy heads to the barbershop.