When groups of sinister drones began hovering over homes in America’s Midwest, the FBI, US Air Force and 16 police forces set up a task force. But the drones vanished. Did they even exist?

At twilight on New Year’s Eve, 2020, Placido Montoya, 35, a plumber from Fort Morgan, Colorado, was driving to work. Ahead of him he noticed blinking lights in the sky. He’d heard rumours of mysterious drones, whispers in his local community, but now he was seeing them with his own eyes. In the early morning gloom, it was hard to make out how big the lights were and how many were hovering above him. But one thing was clear to Montoya: he needed to give chase.

As he approached the drones in his car, they “took off very fast” and Montoya tried to follow. He confesses hitting 120mph before losing track of them. “They were creepy, really creepy,” he says. “I don’t know how to describe it, but it’s almost as if they were watching us.”