Sky History 2 HD Friday

An investigation into crop circles, considering whether they are a hoax or evidence of alien interaction

Experts investigate whether the US military has a secret space programme, as well as evidence suggesting alien races have been in conflict for millennia

Clues revealed in Katzie First Nation history lead the team members north. Kru Williams discovers 100-year-old court documents that shed light on Slumach himself

Andy McGrath explores Wiltshire's mysterious megaliths and barrows, attends a druidic ceremony and encounters a religious pilgrimage at the site of a freshly made crop circle

Beau Ouimette and Rick Edwards seek artefacts from William the Conqueror's era in the stretch of the River Avon near Salisbury

An investigation into crop circles, considering whether they are a hoax or evidence of alien interaction

Experts investigate whether the US military has a secret space programme, as well as evidence suggesting alien races have been in conflict for millennia

Kru finds a tape-recorded interview of a man who claims to have found Slumach's mother lode. Out on the trail, Adam's old rival seems to be a step ahead in his search for the gold

Andy McGrath receives basic military training at a Civil War re-enactment and embarks upon a hunt in the creepy surroundings of Littledean Jail with a paranormal researcher

The mystery surrounding the origin of enchanting crystal skulls that believe were craved thousands or even tens of thousands years ago by an ancient Mesoamerican civilisation

Kevin Sempé dives into the blue waters of the Caribbean to find the relics that litter the sea floor from piracy's heyday in the region

A look at America's Cold War codebreakers charged with unravelling a seemingly uncrackable Soviet code and the uncovering of the Manhattan Project

A crusty old Pontiac Silver Streak must be taken from rags to riches. An extremely rare but rusted Chrysler 300 Hurst needs an extensive polish and shine

A rare Rolls-Royce gets the 'royal' treatment and becomes a rolling beauty once again. A classic Ford pickup in North Carolina is resurrected after years of being hidden in a barn

A satellite captures an eerie image of a perfectly round island rotating within a perfectly round lake in the middle of a supposedly haunted Argentinian swamp

Professional salvage diver Tony Sampson and his team to brave the shifting currents and bone-chilling legends of Nova Scotia in search of wreckage of the SS Atlantic

Visiting a village in Calabria, Ross discovers the true extent of the Mafia's powers - before meeting the daughter of an Italian mob boss

Battles on the Normandy beaches become increasingly ferocious, especially for Lt Charles Scheffel, who is hit early on

The bombing of Greenpeace ship the Rainbow Warrior in July 1985, which resulted in the death of photographer Fernando Pereira

An investigation into crop circles, considering whether they are a hoax or evidence of alien interaction

Experts investigate whether the US military has a secret space programme, as well as evidence suggesting alien races have been in conflict for millennia