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A poltergeist attaches itself to a sensitive young girl, while a shadow man terrorises a boy and a demonic entity violently attacks a teenager.

Discover a revolutionary War era ship hides under the streets of New York and a sprawling Roman villa is unearthed in the backyard of an English home.

Explore some of the most valuable treasures found in the most unlikely of ways.

Explore mysterious secrets hidden in tunnels, caves and burial sites, from lost treasures to ancient manuscripts behind walls.

As the team finds more traces of treasure in the money pit, they discover a clue that may guide them to the ultimate answers on Oak Island.

Alice experiences humiliating Tudor justice as she dives into the story of Tudor England by studying the history of Norwich. (4 of.

The Pawn Stars check out more curious, knick-knacks and memorabilia as the ever-popular series returns for a 23rd season.

While combing through his buddy's boneyard in Cleveland, Mike uncovers a massive stash of brass-era bikes - and is determined to buy them all.

Brandi and Jarrod bring an old friend along to do some heavy lifting, and Shana and Edwina crack themselves up with some snappy accessories.

We Don't Use The S Word Around Here: Brandi and Jarrod pick up what may be the best of the worst, while Ivy comes to the auction dressed to kill.

It's all in the family in Moreno Valley, as Emily brings along her cowboy husband. Ivy is displeased at Mary's fraternisation with the auctioneer.

The Vegas Ladies show up in "Bourgie Brea.

Mike puts his all into the construction of a 71 Camaro to honour a friend battling cancer.

Rick looks to cut a deal on a pair of elaborate 19th-century European swords, and takes a spin in a 1951 Willys Wagon.

A signed Jack Nicklaus golf glove swings into the shop, Corey targets a G.I. Joe Tomahawk helicopter toy and an antique Fender amp rocks Chum's world.

This time in Victorville, Ivy takes it easy, letting Ivy jr run the operation. Kenny feels run down and his lack of focus lands him a locker.

Cloudy With A Chance Of Profit: It's a momentous occasion in Van Nuys for Darrell, and he has a completely groovy time with it. Ivy starts his day off with an unwelcome bang.

Lets Give Em Something To Tonka About: It's a long way to Murietta, and Dave is counting on his competition being unwilling to buy a big locker they need to move.

The buyers head to Torrance, where Dave sees his profits grow - amongst other things. Mary finds clothes that don't fit her, which turns out to be a good thing.

President Hindenburg suspends freedom of speech and Hitler comes to power in 1933. The first concentration camps for political opponents are set up.

The Muskie Creek convoy struggles to recover from disaster after an ice bridge collapses beneath Lisa's truck, tipping her off the road.

Explore whether time travel has already occurred - deliberately or by accident - and meet the scientists who believe it is theoretically possible.

Age-old ruins can stand with their true history seemingly erased by time - can modern research discover why these ancient structures were built.

The Vikings were infamous for being bloodthirsty, seafaring warriors - but historians are learning surprising new things about this Norse society.

Join William Shatner as he explores the bizarre tales involving US presidents that defy explanation and are still shrouded in mystery.

With a fleet of pricey cars and barns exploding with top-notch treasures, Mike and Robbie have high hopes for a sprawling family farm in Ohio.

The Final Battles: With $50,000 at stake, the champion - fresh from defeating six opponents - takes on a returning challenger to forge an acinaces sword. (5 of.

The Lost Viking Fleet of Roskilde: Roskilde's Viking Ship Museum is one of Denmark's top attractions, proving the interest in these seafaring people remains as strong as ever.

The Muskie Creek convoy struggles to recover from disaster after an ice bridge collapses beneath Lisa's truck, tipping her off the road.

Lauro begins the longest Iditarod in the history of the famous sledge dog race and Mike hunts elusive and rare silver foxes along the shoreline of Kodiak Island.

Marty rebuilds a snowmobile from scratch before facing off with a wolverine menace on his trapline and Lauro feels the fatigue on the Iditarod trail.