Who are you? Do you even know who you are? Are you your memories? Are you the choices you make? Are you you? Or are you someone else, but manipulated to be you? If you can lose track of your past and your memories can be altered or implanted, in the end, who are you really? Michael Stevens finds out as he explores what makes you you.

Plants that have developed to thrive in the desert, including cacti that grow in the shade of other trees and collect water in pleated trunks that expand and contract - but can also find themselves a host to other plants, like desert mistletoe. This programme also reveals how tobacco plants being eaten by caterpillars are able to summon the creatures' natural predators, and how tumbleweeds roll across the landscape, only unfurling and growing when they encounter rain.

Michelle McNamara reflects on the 1984 murder of her childhood neighbour Kathy Lombardo, which she credits with planting the seed for her lifelong fascination with unsolved crimes. Michelle really wanted this child and wished to get her murderer caught. The story of the victims has to be told.

The fifth episode of the series is a fascinating exploration of the dinosaur era and its impact on the evolution of life on Earth. Through a journey of 200 million years, we discover how the breakup of Pangea and tectonic changes shaped biodiversity and created environments for dinosaurs and other forms of life to flourish. From the majestic Diplodocus to the formidable Allosaurus, the documentary brings to life the giants that once dominated our planet. Additionally, it shows the evolution of plants, highlighting the emergence of flowers and their symbiotic relationship with insects, such as termites and ants, whose social and evolutionary dynamics are explored in depth. The narrative also addresses the rise of mammals and their coexistence with dinosaurs, highlighting species such as the Numbat and their struggle for survival.
With stunning imagery and a captivating narrative, this episode is an invitation to learn, marvel, and reflect on the extraordinary history of life on Earth.

The third episode of the series is a visually stunning journey, from the earliest lichens and microplants to the imposing dinosaurs and the diversity of life forms we know today. Key moments in Earth's history are highlighted, such as the appearance of arthropods, the development of terrestrial flora and fauna, and the mass extinctions that have reshaped ecosystems.
The documentary not only shows the resilience and adaptability of life on our planet but also highlights the fragility of our ecosystem and the crucial importance of preserving biodiversity for the future of Earth. This documentary is a celebration of life in all its forms and a powerful reminder of our role in protecting this incredibly diverse and dynamic world.

In the third episode, during cleanup at the plant, insiders claim that cost-cutting measures and intimidation tactics create a danger war force than the accident itself.
Several state and federal government agencies mounted investigations into the crisis, the most prominent of which was the President's Commission on the Accident at Three Mile Island, headed by chairman John G. Kemeny. The investigation strongly criticized Babcock & Wilcox, Met Ed, Graphics processing unit, and the Nuclear Regulatory Commission for lapses in quality assurance and maintenance, inadequate operator training, lack of communication of important safety information, poor management, and complacency.
Kemeny said that the procedures and that the control room were greatly inadequate for managing an accident.