Professor Stephen Hawking presents this global exploration of the scientific breakthroughs that are transforming our lives in the 21st century. Aided by some of the world's leading scientific figures - including Sir David Attenborough, Richard Dawkins, Aarathi Prasad, Lord Winston and Maggie Aderin-Pocock - this new five-part series reveals how science is striving for humankind's next leap forward. In this first episode, Machines, the team showcase breakthroughs in technology and engineering that are creating a new generation of machines. Mark Evans fuses his brain with a computer in Switzerland to test a new breed of machine. Kathy Sykes hits the streets of San Francisco to have the ride of her life as she experiences the future of transport in a driverless car. In Italy Jim Alei-Khalili comes face to face with a remarkable baby-like robot called iCub that learns like a child.