In the third episode of the series, the intricate social dynamics of the Ngogo chimpanzee community come to a head. Decades of growth and dominance have made this the largest known chimp group, but internal rivalries lead to a significant schism, with a faction of males breaking away to form their own group, the Westerners. Once comrades, these chimps now face each other as deadly enemies. The tension escalates with the mysterious death of Pork Pie, leaving the central chimps in a state of heightened alert and mourning, while leadership struggles and territorial disputes intensify within both factions.
As the Westerners grow bolder, driven by the likes of Richmond and the ambitious Rollins, they encroach further into central territory, setting the stage for an inevitable clash. Amidst the power plays, we witness the personal struggles of individuals like Jackson, the embattled alpha, and Bartoli, who must protect her son Herzog from the looming threat.
This episode masterfully captures the raw emotion and brutal reality of chimpanzee warfare, leaving viewers on edge as alliances are tested and the fight for dominance reaches a fever pitch.

Drivers, managers and team owners live life in the fast lane — both on and off the track — during this cutthroat new season of Formula 1 racing.
In the first episode, the 2021 Formula 1 season begins at the Bahrain Grand Prix, where drivers give it everything to take the first checkered flag of the year.

David Attenborough takes a stark look at the facts surrounding Climate Change in today's world, detailing the dangers we are already having to deal with and future threats, but also the possibilities for potential solutions to this global threat and the radical political, social and cultural changes needed.
Interviews with some of the world’s leading climate scientists explore recent extreme weather conditions such as unprecedented storms and catastrophic wildfires. They also reveal what dangerous levels of climate change could mean for both human populations and the natural world in the future.

Human society is incredibly complex, and the duelling forces pushing us to conform and also to express our individuality are both necessary. Other people can influence us in good ways and in not-so-good ways.
Michael Stevens takes a look into the human urge to conform and just how strong it is against our own beliefs and sense of selves.

Dr Chris van Tulleken, Dr Hannah Fry and Michael Mosley examine the latest research and explore some of the big questions about Covid-19 and the pandemic it has created. Michael visits the UK government's high-security laboratory Porton Down, where vaccines are being tested. He also uncovers what the experience of the 2002 SARs epidemic reveals about this one. Both were caused by coronaviruses, but certain key changes to today's virus have allowed it to infect the world, where SARs was contained.

A variety of cosmic events have both helpful and harmful effects on life on Earth. From the beauty of the Aurora Borealis and rainbows to the dangers of UV radiation and cosmic rays, from the miracle of photosynthesis to the thrill of a meteor shower, this episode explores how the effects generated by the sun and other extra-solar sources can literally get under our skin, scramble our technology, make life possible and threaten our existence all at the same time