In the final two episodes, the experiment moves from theory to real life as the twins are forced to take full control of their food choices after moving out on their own. Cooking becomes a daily challenge, exposing how habits, convenience, and culture shape what we eat. At the same time, innovators pushing plant-based alternatives step into the spotlight, as growing concerns around animal products raise urgent questions about health and sustainability. As the study reaches its conclusion, the results are finally revealed. Detailed analyses of weight, gut health, and brain function confront the twins with clear, and sometimes surprising, consequences of their diets. What began as a personal test widens into a broader reflection on the future of food, as momentum builds around a changing food industry and the choices that may redefine how we eat.
A chilling investigation dives into the looming threat scientists call “Disease X” — an unknown pathogen capable of triggering the next global pandemic. Led by physician and broadcaster Chris van Tulleken, the documentary explores how modern life, global travel, and human–animal contact are creating the perfect conditions for a catastrophic outbreak. What begins as a scientific inquiry quickly becomes a race against time to understand how close we may already be to the next crisis. To uncover where Disease X might emerge, van Tulleken retraces the fault lines of past outbreaks, from the deadly Nipah virus in Malaysia to the spread of bird flu among dairy cattle in California. Through frontline reporting, expert interviews, and unsettling real-world examples, the film reveals how fragile global health defenses truly are — and why the next pandemic may not be a question of if, but when.
Physicist Jim Al-Khalili embarks on an extraordinary quest through 600 million years of evolution to reveal how the human brain — the most complex structure known in the universe — came to exist. With more than 100 billion neurons and 100 trillion connections, it surpasses even the stars of the Milky Way. Through breathtaking science and striking visuals, this documentary uncovers how nature transformed simple nerve cells into the ultimate thinking machine. From the first survival instincts of primates to the dawn of social intelligence, Jim explores how cooperation, relationships and empathy reshaped the brain and made us who we are. Working alongside his wife and leading researchers, he dives into fossil evidence, brain scans and the rise of artificial intelligence to answer one profound question: what makes the biological brain so unique — and can anything ever match it?
In this powerful continuation of his personal journey, Chris Hemsworth takes viewers around the world to test the boundaries of body and mind. Confronted with chronic back pain and concerns about memory decline, he seeks answers not in laboratories but in life-changing challenges designed by scientists, health experts, and elite trainers. From the nerve-racking task of learning to play the drums—culminating in a breathtaking live performance with Ed Sheeran before 70,000 fans—to enduring brutal Special Forces–style trials in South Korea involving electrocution, pepper spray, and freezing waters, each step reveals the fragile balance between vulnerability and resilience. His raw honesty and willingness to fail make the journey as intimate as it is inspiring. On our website, viewers can enjoy the entire adventure with the three episodes combined into a single video, seamlessly following Hemsworth as he explores how to live better, face fear, and unlock the science of resilience and longevity.
In the final three episodes, the stakes couldn’t be higher. A builder’s life takes a sudden turn after a catastrophic fall through a glass window leaves his hand’s main joint brutally severed. The family of a young assault victim fights to come to terms with the deep personality changes caused by a traumatic brain injury. Meanwhile, a team of orthopedic surgeons faces one of the most delicate pelvis operations imaginable, where a single wrong move could mean irreversible nerve damage. Raw emotion, split-second decisions, and life-altering consequences unfold before your eyes.
In Episodes 4 and 5, you can see how the most universal human desire—to bring new life into the world—collides with science, culture, and the limits of our own biology. From groundbreaking fertility treatments that promise hope to countless families, to the hidden struggles behind why so many people still can’t conceive, these episodes reveal the fascinating and often heartbreaking reality of reproduction today. You’ll also witness the raw, unfiltered experience of itself: the intense pain, the unexpected complications, and the inspiring ways doctors and parents try to make this incredible ordeal safer and more humane.
As the study reaches its conclusion, the results are finally revealed. Detailed analyses of weight, gut health, and brain function confront the twins with clear, and sometimes surprising, consequences of their diets. What began as a personal test widens into a broader reflection on the future of food, as momentum builds around a changing food industry and the choices that may redefine how we eat.