Tyson describes the discovery of cosmic rays by Victor Hess through high-altitude balloon trips. Swiss Astronomer Fritz Zwicky, in studying supernovae, postulated that these cosmic rays originated from these events instead of electromagnetic radiation. Also tells how Vera Rubin observed that the rotation of stars at the edges of observable galaxies did not follow expected rotational behavior leading to consider the existence of dark matter. This further led to the discovery of dark energy to account for the increasing rate of expansion of the universe. Tyson then describes the interstellar travel of the two Voyager probes. Tyson tells the Carl Sagan's role in the Voyager program, including creating the Voyager Golden Record to encapsulate humanity and Earth's position in the universe. Tyson concludes the series by emphasizing Sagan's message on the human condition in the vastness of the cosmos, and to encourage viewers to continue to explore and discover what else the universe has to offer.

The saga of a handful of conquerors who built an empire in Central America and invented the methods of one of the very first multinationals. In 19th century Central America, a few entrepreneurial cowboys built an empire that enslaved populations and corrupted governments for over 100 years. The United Fruit Company thrived on unregulated capitalism; this film tells its story and that of its pioneers who feared neither God nor Man, and managed to get away with murder. Until the 1970s, that multinational set up a monopoly by combining violence, repression, corruption, environmental destruction and a formidable marketing machine. It turned an unknown fruit into an instrument of fortune and domination, and created a business model still largely used by today’s tech giants.
Using a rich trove of archival footage and documents, including letters to and from lobbyists, telegrams, vintage ads and movie clips, and gorgeous, hand-tinted stills, 'When Banana Ruled' is a story of intrigue that touches on economics, international politics, the history of business and reveals how an array of forces conquered the world through a simple fruit.

Sagan reflects on the future of humanity and the question of 'who speaks for Earth?' when meeting extraterrestrials. He discusses the very different meetings of the Tlingit people and explorer Jean-François de La Perouse with the destruction of the Aztecs by Spanish conquistadors, the looming threat of nuclear warfare, and the threats shown by destruction of the Library of Alexandria and the murder of Hypatia. The episode ends with an overview of the beginning of the universe, the evolution of life, and the accomplishments of humanity and makes a plea to mankind to cherish life and continue its journey in the cosmos. The Cosmos Update notes the preliminary reconnaissance of planets with spacecraft, the fall of the Berlin Wall and the end of apartheid in South Africa, and measures towards the reduction of nuclear weapons.

A Six-part Saga on the South Florida traffickers indicted in one of the largest drug cases in U.S. history. Alleged to be the chief U.S. distributors for two of Colombia's biggest cartels, Cuban exiles Augusto 'Willy' Falcon and Salvador 'Sal' Magluta were accused of smuggling over 75 tons of cocaine into the U.S. in the 1980s. The high school friends built a reputed $2 billion empire that made Willy and Sal two of Miami's biggest celebrities. Featuring colourful interviews with those closest to them, their defence team, and the Feds tasked with taking them down, the series paints a vivid portrait of the last of Miami's 'cocaine cowboys.'
The first episode shows how in the 1970s and '80s, friends Willy Falcon and Sal Magluta leave humble beginnings behind as they allegedly ascend to the top of Miami's drug trade.