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Henry investigates everyday dangers lurking in and around the home, from backyard burn piles and flood risks to faulty fans and toxic garden hoses.

Nature: Mother Nature may be breathtaking-but she doesn't always play nice.

When something strange is caught on camera in a tunnel beneath the Colombian jungle, experts wonder if it's a wormhole to remote places in the cosmos.

A first-time seller opens a remarkable time-capsule general store, while Mike revisits a Hollywood legend packed with unforgettable finds.

From the Rosetta Stone to colossal statues, a fierce rivalry unfolds as competing explorers and collectors race to uncover the wonders of ancient Egypt. (2 of.

Henry investigates everyday dangers lurking in and around the home, from backyard burn piles and flood risks to faulty fans and toxic garden hoses.

Mike and Jersey go wild for an eclectic Kentucky stockpile. Mike steps up with a high-flying bid for the Holy Grail of vintage motorbikes.

It's business as usual until a vintage Mercury Zephyr arrives and shakes things up. Also, Darrell stumbles over upon the ultimate sketch artist.

Ivy and Pops go head-to-head, and when Brandi's secret weapon lands her more than she bargained for, Kenny swoops in to brighten up her day.

Kenny's fear of sharks inspires a controversial wardrobe choice, Rene tries to intimidate the competition and Darrell has tunnel vision.

Barry works with a masked bidder and the pair develop a winning strategy. Meanwhile, Rene checks out a risqué room.

Alec sets out to make one of the largest weapons he's ever attempted - a fear-inducing 8-foot Halberd.

That's the Way the Cookie Crumbles: Rick calls in a special guest to authenticate a Mick Foley T-shirt. Meanwhile, a seller walks in with an McDonald's cookie from the 1980s.

The owner of a massive collection of Toy Story toys has high hopes for big money, but Corey's expert reveals some key details that are missing.

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

Mike and Jersey go wild for an eclectic Kentucky stockpile. Mike steps up with a high-flying bid for the Holy Grail of vintage motorbikes.

Lisa inadvertently causes complications in California, while Ivy and his son conjure up a locker with some mysterious sports equipment.

Brandi tries to keep things positive in Perris. Meanwhile, Gunter and Rene lock horns over a locker full of rubbish.

..For a Locker!: Ivy goes up against an upstart buyer in California, while Lisa gets more than she bargains for while angling for a smaller unit.

Brandi lets Danielle lead the way in California, and their bargain purchase is a trip. Also, Rene takes a gamble on interesting packaging.

Uncover haunting factors and new evidence, possibly leading to fresh verdicts for these enigmatic men.

The Hunt for the Anthrax Killer: An examination of the 2001 attacks, tracing deadly letters and the unprecedented investigation into a chilling act of bioterrorism.

Look What You Made Me Pawn: A rare collection of model Formula 1 cars races into the pawn shop. Can Rick spot a winning investment, or will he be left in the dust.

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.

When Rick gets a chance at an iconic collection of Hard Rock photographs, can he capture a deal or will another one bite the dust.

With the power in their hands, will a seller toy with Chum's emotions when he gets his hands on a trio of vintage comic strip characters.

Mike and Jersey sift through a tidal wave of early technology and Robbie is determined to rev up a one-of-a-kind car with no owner's manual.

Off the Hook: A thrilling showdown between two previous champions, each ready to showcase their skills in a high-stakes five-hour challenge.

Look What You Made Me Pawn: A rare collection of model Formula 1 cars races into the pawn shop. Can Rick spot a winning investment, or will he be left in the dust.

A rare look inside Russia's shadowy criminal brotherhood, where loyalty, power and tradition collide in a changing world. (1 of.

The Hunt for the Anthrax Killer: An examination of the 2001 attacks, tracing deadly letters and the unprecedented investigation into a chilling act of bioterrorism.

Beastly Howls, Holloman Air Force Base UFO, and the Cabin That Defies Gravity: How does a cabin seemingly defy gravity? And what is the origin of some frightening howls.