The quest to discover extraterrestrial life is underway! After an illustrious career in cosmology, Professor Martin Rees, the Astronomer Royal, has embarked on the mission to find alien life forms. The search for extraterrestrials has transitioned from the realm of science fiction to a serious scientific inquiry, captivating some of the brightest minds in the field. As our understanding of the cosmos expands, we are edging closer to uncovering the truth. Many researchers now believe our galaxy contains a billion planets similar to Earth, potentially brimming with life. But what form does this life take? Have any of these life forms evolved into entities capable of communication with us? This film delves into the thoughts of scientists exploring one of the most thrilling and profound questions: are we alone in the universe? Professor Rees suggests that our perception of aliens might be entirely mistaken. If his theory holds true, we should be searching not for organic extraterrestrials, but for machines.