The second episode of the series looks at dreams and tries to explain what happens in the brain and body after we go to sleep. It looks at the significance of dreams and what dreams can teach us about ourselves. It talks to neuroscientists who discuss slow-wave sleep and REM (rapid eye movement) sleep during which dreams occur. It looks at the history of dream interpretation and its validity.

Phil Jackson brings a new philosophy to the Bulls after replacing Doug Collins and takes the Bulls to the next level. He manages to not only connect on a deep level with his players, but also install the Triangle Offense, a key turning point in Chicago's dynasty.
The Bulls finally eliminate the Pistons in the 1991 Eastern Conference finals and earns a shot at an NBA title. But controversy ensues when Detroit players walk off the floor before the end of regulation without engaging in the customary postgame handshakes.

The third episode looks at anxiety and explores why it is so common. It talks to neuroscientists who explain the physiological and evolutionary basis of anxiety. Although it can help animals escape predators, anxiety can cause serious problems for human beings. It talks to sufferers of anxiety and examines the different types of anxiety people can feel. It also looks at how social media can cause anxiety.

The final episode of this series looks at what happens to the brain when someone uses psychedelic drugs. It looks at how psychedelic drugs may be useful in dealing with anxiety in cancer survivors and serious depression. It explores the history of psychedelics and examines early medical experimentation with the drug. It also discussed why psychedelics were banned and examines how they affect the brain.

We will see in this episode how Scottie Pippen rises from obscurity to become one of the NBA's best players. Also how an injury early in Michael Jordan's career sows distrust with Chicago Bulls management. Scottie Pippen took an unusual path to the NBA, growing into a star at Central Arkansas. Pippen earns the trust of Jordan and finds the perfect role as an elite wing defender and playmaker, but his frustration with management over his contract leads to a trade demand in 1997.

The last episode examines the fragile interdependence that exists between forests' wide variety of residents, including bald eagles, hunting dogs and Siberian tigers.
Over half of all the world's trees, evergreen and deciduous, stand in great assemblies. For many of us, they are places of mystery and darkness. They are key to our climate, and home to countless unique species. The boreal forest contains 750 billion trees, and it stores over 40 percent of the world's carbon, making it a vital element in the fight against climate change. In the past, we have destroyed them without hesitation. Yet, forests do have an astonishing ability to recover. If we choose to give forests time and space, they could reclothe the earth with much of the rich and varied communities of animals and plants of which we have, so recently, robbed it. A future with more forests is key to the resilience of our planet.