Jack pushes Ozzy and Sharon to question reality with a ghostly canine, a Canadian Bigfoot and a UFO sighting. Plus, Sharon serenades her cat.

Tanner's plans for revenge take a truly dark turn at a deserted Pennsylvania hospital. Dark entities, doppelgangers and poltergeists lurk around every corner.

The AIMS team meet with their leader Trapper who reveals a clue they have been missing. With the new information they try again to find the Cherokee Devil.

Paul searches for evidence that extra-terrestrials are among us. He unearths long-buried files that could lead to an alien cover-up all the way to the White House.

Josh continues his journey through Egypt to uncover the secrets of ancient history's most powerful women rulers: Nefertiti and Cleopatra.

Josh travels down Australia's infamous Shipwreck Coast for the missing Mahogany Ship. Confirming the vessel's existence could rewrite the country's history.

Neil starts the first Motherlode tour, but complications could spell the end of his work. Jeremy embarks on a bear hunt but encounter something even more dangerous.

Jeremy fights rising rivers to find timber for Neil's lumber project. At the Mother Lode, Neil takes a gamble on excavating a new entrance.

At the height of the Cold War, the USA searches for a way to create a generation of "Supersoldiers" who use telepathy to win battles.

Gold is one of the most valuable treasures on Earth. Since ancient times, man has gone to extreme lengths to get it. But where is most of the gold today, and who owns it?

Paul looks for answers in a 60-year-old string of unsolved cattle mutilations across the US. He heads to a remote Nebraska farm to uncover the truth.

Paul searches for evidence that extra-terrestrials are among us. He unearths long-buried files that could lead to an alien cover-up all the way to the White House.

The drama at Derek's cliffside build near Valdez escalates after rain saturates the region and there's an accident on the roof. Tony leaves his build in Bobby's hands.

Lee and his crew install a new woodstove to dry out the drywall mud and tape. Derek and his band of ski buddies race to protect the cabin from curious bears.

In 2014, Malaysia Airlines flight MH370 vanished without a trace. Did it crash and if so, why can't the wreckage be found?

Atlantis is one of the most famous disappearances. After thousands of years, can state-of-the-art technology finally to crack this ancient mystery?

The team explore the haunted corridors of an abandoned manor that was opened to house the homeless and insane, but became a byword for suicide and bizarre deaths.

The team investigates a house where three kids are tormented by apparitions. Then they explore a hospital on the site of an old lunatic asylum - what haunts the morgue?

Drawn to small town Iowa by reports of aggressive shadow figures, Nick and Katrina venture to the harrowing halls of Malvern Manor for 72 hours to capture evidence.

The guys go to California to inspect the home of the eccentric heiress to the Winchester Rifle fortune. Were her fears of vengeful ghosts justified?

Josh treks deep into Siberia for a site where priceless mammoth bones are mined out of the permafrost. Then, he takes the DNA samples back to the lab.

The AIMS team set off to track down one of the cloaked figures at the heart of the Spearfinger mystery. However, the red shed might hold all the answers.

Hans Holzer visited Mystery Hill countless times throughout his career. The team are in New Hampshire to uncover the dark truths buried on this hilltop.

Jack and Katrina head to Skinwalker in Utah. They're investigating a rumoured haunted bed and breakfast, plus they look at paranormal activity in the area.