The fourth series of the documentary presented by Morgan Freeman that explores the mysteries of life and the universe. The episodes are: 'Is There a God Particle?', 'When Does Life Begin?', 'Can We Survive the Death of the Sun?', 'How Do Aliens Think?', 'Will Sex Become Extinct?', 'Can Our Minds Be Hacked?', 'Are Robots the Future of Human Evolution?', 'Is Reality Real?', 'Do We Have Free Will?' and 'Did God Create Evolution?'.