Bradley Walsh begins his journey into Ancient Egypt, driven by a lifelong fascination with its most iconic structures, the pyramids. As a former Rolls Royce engineer, Bradley questions mainstream theories about their construction, finding the numbers puzzling. Armed with measuring tools, his notebook & alternative hypothesis, he examines the Great Pyramid’s exterior and earlier structures like the Step Pyramid, Bent Pyramid, and Red Pyramid to uncover how they were built and by whom. Then, fulfilling a dream, he ventures inside the Great Pyramid at night to confront a hotly debated question: was it truly a Pharaoh’s tomb built 4,500 years ago, or could it be even older with a purpose linked to extraterrestrial power generation?