One extraordinary family of fish has achieved the ultimate form of gender equality. When it comes to breeding, seahorses do it like no other animal on the planet. Their fierce females refuse to be left holding the baby. So it's the males that carry their brood. In this episode we explore the world of mating seahorses which are the only animals in the world that have a major gender role reversal.

In an enthralling documentary, Dan Snow and archaeologist Raksha Dave delve into the catastrophic impact of the Black Death on Britain 700 years ago, a pandemic that extinguished around half of the population, or three million people. The duo embarks on a journey to trace the origins and merciless spread of the plague, starting from its arrival on Britain's South coast in June 1348, through the bustling trade routes that brought the disease to Melcombe Regis, Dorset. Their investigation takes them to various hotspots of the outbreak, including the Old Operating Theatre in London and Wildwood Animal Sanctuary in Kent, where they explore the role of rats in dispersing the bubonic plague. Through dramatic reconstructions and visits to places like Nottingham University's biomedical laboratories, they uncover the rapid spread and deadly impact of the plague, offering a month-by-month account of how it ravaged the country, decimating cities, towns, and villages alike.
The documentary not only showcases the horrific symptoms and desperate attempts at cures through brutal medical practices of the time but also leverages cutting-edge research to explain why the Black Death remains the deadliest pandemic in history. The personal stories of victims, from princes to paupers, are brought to light, revealing the indiscriminate nature of the disease. Dan's visit to Canterbury Cathedral and Raksha's investigation into the recent discovery of mass graves beneath a tranquil London square underline the widespread desperation and devastation. Their journey through the history of the Black Death, culminating in the discovery of its indiscriminate toll and the unveiling of mass graves in London, not only sheds light on the darkest chapters of British history but also ignites a profound understanding of the tragedy, making a compelling case for why this documentary is a must-watch for anyone interested in the profound impacts of pandemics on human society.

The last chapter explains how the 2010s became another lost decade in the fight against climate change – as the move to natural gas delayed a transition to more renewable sources of energy.
Engineer Tony Ingraffea, in the 1980s, helped develop a new technique for extracting gas and oil from shale rock, which ultimately became known as 'Fracking'. It was to unleash vast new reserves of fossil fuels and was promoted as a cleaner energy source. But Ingraffea explains how he later came to regret his work when he realized that gas could be even worse for climate change than coal and oil.
Dar-Lon Chang, a former ExxonMobil engineer, speaks for the first time on camera alleging that as the company increased its natural gas operations, it was not sufficiently monitoring methane leaks that were contributing to climate change. Now, after a year of unprecedented wildfires, drought and other climate-related disasters, multiple lawsuits are being brought in US courts in efforts to hold Big Oil legally accountable for the climate crisis.

This is the first of two episodes dissecting the psyche of Daniel Ricciardo. A second big money move in two years now sees the Australian set foot on the shore of the McLaren Technology Centre, only to find the territory is already occupied by Lando Norris. The Australian looks like he was really hoping to flash the car up into Q3 with his teeth, only to find it isn’t that easy.
Ricciardo is really struggling to get his head around the idiosyncratic MCL35M, but it gets worse: his boyish, funny, charismatic team-mate Norris is doing him over every week. The relations between the two drivers deteriorate also. Can Ricciardo recover his form?
The footage is interspersed with short scenes featuring Ferrari drivers Charles Leclerc and Carlos Sainz.

Space exploration as we’ve never seen it before, taking us behind the scenes of how NASA creates and sends the James Webb Space Telescope into space. Follows a team of engineers and scientists in an ambitious mission to launch the telescope and take the next giant leap in the understanding of the universe.

The third part of the series begins with the excitement of Button's initial victories, highlighting his talent and skill on the tracks. However, as the season progresses, the focus shifts to the growing tension between Button and Barrichello. This tension is fueled by the internal struggle for leadership in the team and the drivers' championship. These rivalries affect performance on the track. Another key point is the management of the Brawn GP team, facing financial and technical challenges while seeking to maintain its competitive edge against rivals like Red Bull and McLaren. We discover the psychological aspect of racing, showing how the pressure of the championship affects Button, leading him to make mistakes and question his abilities. At the same time, Barrichello's resurgence is observed, showing determination and experience to take advantage of his opportunities.
Finally, the evolution of the Brawn GP team is addressed, from its triumphs to moments of uncertainty, culminating in a season that is both a success story and a testimony to the unpredictable nature of Formula 1.