Sky HistoryHD

With the invasion of Britain officially postponed, the Germans looked for another way to knock Britain out of the war.

The Birth of a Viking Warrior: Witness the rise of a Viking prince as Knut sets his sights on England, launching a ruthless conquest that will reshape Northern Europe.

A fire-breathing crater burns in the middle of a desert, a deadly shark lurks on a golf course, and a giant white blob threatens a town in California.

A giant ice creature is spotted in Alaska, a jet has a close encounter with a UFO, and evidence of a lightning strike invites paranormal speculation.

A shark is eaten by a mysterious predator, and experts wonder if a prehistoric monster is to blame. A sinister sight is filmed near Russia's Area 51.

Dan Jones visits Lancaster Castle to explore its grisly history of crime and punishment, including the infamous Lancashire Witches trials. (5 of.

Dan explores the history of the Earls of Arundel, how knights fought in the Hundred Years' War and how the Castle would have prepared for Queen Victoria's 1846 visit. (6 of.

First seen from space in 1965, the Eye of the Sahara is a beautiful 25-mile structure, but how it formed remains a mystery.

NASA astronaut Mike Barratt describes photographing a strange ring in the ice on the world's oldest lake from the International Space Station.

The Rule-Her of West Covina: Brandi makes a serious land grab and it pays off, Rene can't resist a big mystery and Barry poaches from the competition.

Ivy scores a packed locker and stumbles across an antique of unusual origin, while Darrell discovers that good things come in small packages.

Stanton in the Place Where You Work: Rene has lukewarm results bobbin' for profits in Stanton, while Brandi does end up with the green... just not in the way she expected.

Barry takes Dusty under his wing at a big Auction in Fullerton as Rene makes some dainty discoveries.

The women outnumber the men in Rosamond as Dusty and his girlfriend discover a stockpile of vintage TV memorabilia.

Lancaster turns into Ivy's honeypot, Lisa plans to use her brain when selecting lockers and Dusty and Tollbooth Lupe do a mitzvah.

The buyers press their luck in Sin City where Brandon and Lori get outfoxed by a group of locals, while Jesse gambles on a locker filled with junk.

Jesse taunts Brandon and Lori in the hopes of instigating a fight, before seasoned local Victor throws down his bankroll for a trove of luxury goods.

Brandon returns to Boston and squares off against his former protégé, Wade, before a military hero goes all in on a locker hiding the ultimate score.

The score of a lifetime is hidden in the back of a locker, but when the bidding heats up, will our auction heroes have the cash to stay in the game.

Rick and Corey dart out of the shop to check out a 1968 convertible. Meanwhile, Chum desperately wants a piece of an oreodont fossil.

Rick prepares for battle over a pair of vintage posters, Corey takes a look at an old fireman's megaphone and Chum heads over to a photo gallery.

Rick aims to get a rifle from the 1800s, a seller flexes a signed autobiography by Arnold Schwarzenegger and a ventriloquist doll makes Corey's head spin.

Explore the Mary Celestia wreck, discover imperial relics from Iraq, a medieval man's remains and lost artefacts reshaping Native American history.

Explore Seahenge's timber circle, a Ukrainian canoe, ancient remains in a mudslide and a relic from Lake Mead's dry bed.

Check out a mythical sculpture unearthed by an Indian tsunami, a 12th-century temple in quake-prone Mexico and a sunken ship in Utah's Great Salt Lake.

After becoming smitten with an inmate in a dog training program, Toby Dorr uses a dog crate to smuggle her new love out of Lansing Correctional Facility.

Hans Jochaim-Horn breaks into a German army base, steals a tank and smashes through three sets of gates at Schwalmstadt Prison to breakout his friend.

Follow the story - spanning more than 4,000 years - of the ancient scroll, the Egyptian Book of the Dead, which is thought to have influenced not only the Old Testament but Moses himself.

Trace a killer on the run as Vicky McClure revisits the Dr Crippen case, uncovering murder, escape and an infamous manhunts.