The hosts provides an overview of how life on Earth started. He mentions the eons in which life formed and explains the RNA World Hypothesis, which states that early life relied on RNA rather than DNA.

This clip illustrates how DNA is formed and how it define who we are. It also describes that DNA varies from person to person and that every person has one-of-a-kind DNA.

This clip describes how genetic mutations can lead to an animal's advantage in survival. Neil deGrasse Tyson talks about a Black bear that turns into a white bear because of a genetic mutation, which later became known as polar bears.

Brielle explains that humans share 98% of our DNA with gorillas. How a gorillas' body is six times more the strength of a human Gorrillas also enjoy a peaceful life and they have excellent communication skills.

This clip takes us into the microscopic world through a series of steps, with each step being 10x smaller than the previous. It illustrates the microorganisms that exist in drop of water and the components of those organisms, including DNA and atoms.