What makes us human is the squishy triple-pounder inside our heads. It lets us build skyscrapers, and lift a special few of us into space. We are the only species on this planet that can construct realities in our mind and then go actually build it. The story of how our mind evolved on this one strange rock is one of chance, coincidence and impossible odds.
This episode is an investigation into the mystery of the human brain and the chain of events that produced the anomaly of human intelligence.

This is our home, the earth it's, it's the only place we've got. It is one strange rock because it's ours and we are here and we don't know if any other place in the universe, yet, that can support life. We're very lucky to have it as our home.
Astronauts including the legendary Peggy Whitson, who spent 665 days in space, speak about how their concepts of home have changed since their experience.

The 8th episode reviews Giovanni Cassini's life. His observations of Saturn and its moons would have an enduring effect on the scientific world. Neil deGrasse Tyson also narrates the mysterious untold story of the scientist who figured out how to go the Moon while fighting for his life in a WWI trench. Aleksandr Shargei changed his name to Yuri Kondratyuk out of fear for his life and wrote a manuscript on rocket motion and space colonization. This letter would end up capturing the attention of an engineer working on the Apollo program, John Houbolt, and would made the Apollo Mission possible.
We will also know the saga of the twenty-year long odyssey of Cassini-Huygens spacecraft, a robotic explorer ordered to commit suicide on another world.

Details one of the most elaborately staged theatrical productions in music history as Pink Floyd frontman Roger Waters performs the band's critically acclaimed album The Wall in its entirety.
The tour 'Roger Waters: The Wall' were performed from September 2010 to September 2013. The film have lots of footage from the concerts and other materials that have been filmed recently by Roger Waters – like his visit to his father’s grave in Italy that featured a film crew.

Foo Fighters prepare to record at the Austin City Limits Studio, with blues guitarist Gary Clark, Jr. In this episode is examined the roots of Austin's music scene, with interviews featuring Billy Gibbons from ZZ Top, and Roky Erickson from 13th Floor Elevators, who is considered one of the American fathers of psychedelic rock. Dave also chats with Terry Lickona, the executive producer of Austin City Limits. The song 'What Did I Do? / God As My Witness' is recorded during this chapter.

Los Angeles' highly influential position in rock history is examined. Pat Smear remembers the days of Germs, and visits legendary KROQ disc jockey Rodney Bingenheimer, owner of a 1970s Sunset Strip club that became the hub for the Los Angeles glam rock scene. Foo Fighters head to the desert to record their new song 'Outside', which features a solo from Eagles' guitarist Joe Walsh, at Rancho De La Luna, and in turn, Kyuss and the 1990s Palm Desert Scene is explored.