Presented by Sir Tony Robinson, in this episode the drones fly through a village erased from the maps, a supermarket without any customers, and a platform in the ocean that claims to be an independent nation. The flight starts in Scotland, where just a few miles from the Forth Bridge the largest aircraft carriers ever built for the Royal Navy are under construction. Security in the dockyard is tight, but with each carrier weighing 65,000 tonnes and the flight deck measuring 4.2 acres, it's hard to keep them under wraps! Then the drones head to Nottinghamshire, to an unmarked building. Inside it looks like a supermarket, but there are no tills, no queues and the public are not allowed in. It's not on any official list of stores and the only shoppers to be found are professionals working through the night to prepare online shopping orders. From here the drones fly to the Kent coast where a World War II shipwreck looms over the town of Sheerness - packed full of high explosives.
Tony Robinson presents a second series of the programme that uses drones to shoot aerial footage of areas of Britain that are off limits to the public. In the first episode, he dispatches flying cameras to explore an abandoned theme park, an immense stately home and underground wine vaults belonging to billionaires. The programme also examines the secrets that Argos conceals from the eyes of its customers and contains footage of a flower farm in full bloom, which is closed to the public for 50 weeks of the year.
Tony Robinson sends camera drones to shoot more aerial footage of areas of Britain that are off limits to the public, including a nuclear decommissioning site that is still in active use and has appropriately tight security. Plus, cameras catch footage of bats up close and reveal the truth behind crop circles. Last in the series.
One of the hottest summers on record is creating an adrenalin rush among Britain's aerial archaeologists. As their drones take to the skies, they are uncovering significant new finds emerging from the parched landscape. All over the country, hundreds of unknown historic sites have been revealed from the air. And it's not just the professionals that are striking gold - an army of drone-flying amateurs have made some incredible discoveries. In this Heatwave special edition of Hidden Britain by Drone, history and archaeology enthusiast Sir Tony Robinson investigates how this summer's long dry spell created the perfect conditions for the mysterious 'parch marks' that led to these remarkable discoveries. He meets the archaeologists and drone pilots that have been flying all over the country to record this transient phenomenon. Once it rains, the marks disappear, but the hidden secrets have been revealed - now it's a question of what happens next to these hidden historic gems.