Peter Moore, the murderer known as the 'man in black', has now served 25 years in prison. Back in 1995, he terrorised communities along the north Wales coastline, killing four men and allegedly attacking many more. By day he was a well-respected shopkeeper and cinema owner in Kinmel Bay, and by night he was a sadistic killer who seemed to target gay men. In this special edition of Dark Land, former chief constable Jackie Roberts returns to re-examine the hunt for the man who would go down in history as Wales’s worst serial killer. Moore is revealed as a man with a violent secret life, hiding in plain sight. Beneath the façade of a respectable businessman was a mind warped by a dysfunctional upbringing; a man who seized upon a climate of gay prejudice to embark upon a 20-year spree of savage attacks, confident his victims wouldn’t feel able to come forward to complain. The ultimate question is, could Moore have been stopped before he went on to kill and kill again?

Where do flying saucers originate? Do they carry aliens from other worlds? Or is the truth actually a lot stranger. During World War II the Nazi's employed scientists to re-imagine the boundaries of scientific thought and practise. Many in the field of advanced weapon design - the programme that produced the V1 and V2 rockets that rained on Britain. But did this same unit produce rudimentary flying saucers? Declassified military documents detail the numerous reports by allied pilots of 'foo fighters', unusual craft with incredible acceleration engaging them in the skies above Germany. In addition there was the Nazi 'Der Glocke' or 'The Bell' project for a vertical take-off vehicle, which resembles eyewitness reports of a UFO crash in Pennsylvania after the war. Thousands of Nazi scientists were brought to the US at the end of the war. Are these men, and the projects they continued to work on in America, responsible to little green men, 400 UFO sightings a month and even the ...

Judi Dench, perhaps our greatest Shakespearean actor, puts acting to one side as she turns detective to solve a mystery from her family’s past. Did Judi’s ancestor meet her hero William Shakespeare?