Dr. David Eagleman takes viewers on an extraordinary journey in "What is Reality?" He explores how the brain, locked in silence and darkness without direct access to the world, conjures up the rich and beautiful world we all take for granted.

In "Why Do I Need You?" Dr. David Eagleman explores how the brain relies on other brains to thrive and survive. This neural interdependence underpins our need to group together, and our ability to do the very best and the very worst of things to each other.

"What Makes Me?" explores how we are our brains, how our personality, emotions, and memories are encoded as neural activity. The process of becoming someone continues through our lives. We change our brain, and our brain changes us.

In "Who is in Control?" Dr. Eagleman explores the unconscious brain, and reveals that everything from our movements, to our decisions, to our behavior is largely controlled and orchestrated by an invisible world of unconscious neural activity.

In "How Do I Decide?" Dr. David Eagleman explores how the brain navigates the tens of thousands of conscious decisions we make every day, and the many more unconscious decisions we make about everything from who we find attractive, to what we perceive.

In "Who Will We Be?" Dr. Eagleman journeys into the future, and asks what's next for the human brain, and for our species. He reveals that in the future our descendants may be so different to us that we will be strangers to them.