In December 1980, United States Air Force personnel stationed at RAF Woodbridge in Suffolk reported unusual lights in nearby Rendlesham Forest. Several servicemen entered the woods, believing that an aircraft might have come down, and later described an encounter that became one of Britain's most famous UFO cases.

This episode examines the original military memorandum, witness testimony, the strange lights, reported ground impressions, and conventional explanations involving a nearby lighthouse, stars, and misinterpretation. The event is documented, but what individual witnesses actually encountered remains disputed.

Did American servicemen witness an extraordinary craft in Rendlesham Forest, or did several ordinary events combine into one enduring mystery?