In the final three episodes, the series follows animals being pushed to the edge as melting ice, extreme heat and prolonged drought reshape the environments they depend on. In the Himalayas, a snow leopard is forced from familiar territory, while an Arctic ground squirrel in Alaska undertakes an extraordinary migration and a young Arctic fox in Svalbard faces her first winter alone. These cold-adapted animals must rapidly change behaviours that once worked for generations as their frozen worlds become increasingly unstable. The struggle then shifts to the opposite extreme, where wombats, leopards and kangaroo rats are tested by record heat and worsening drought, pushing their remarkable physical and behavioural adaptations to their limits. In the final episode, attention turns to the people working directly to help wildlife survive these new extremes, revealing rescue efforts, scientific interventions and conservation strategies in some of the planet’s harshest environments. Together, these final chapters show that survival now depends not only on the animals’ ability to adapt, but increasingly on how far humans are willing to go to protect them.
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 struggle then shifts to the opposite extreme, where wombats, leopards and kangaroo rats are tested by record heat and worsening drought, pushing their remarkable physical and behavioural adaptations to their limits. In the final episode, attention turns to the people working directly to help wildlife survive these new extremes, revealing rescue efforts, scientific interventions and conservation strategies in some of the planet’s harshest environments. Together, these final chapters show that survival now depends not only on the animals’ ability to adapt, but increasingly on how far humans are willing to go to protect them.