Professor Brian Cox tells the story of the origins and history of life, from the fundamental laws which govern its creation, to the myriad species that populate our planet. Tracing how light, gravity, time, matter and energy combined 3.7 billion years ago to begin a process which ultimately led to the huge diversity of life we now have on Earth, Prof. Cox visits locations around the world to reveal how life came to adapt and develop in the most unusual and unexpected places.