Even 2,000 years after his death, General Hannibal's battle strategies are still studied today. But of all his military feats, perhaps his greatest was leading his massive Carthaginian army of men and three-dozen elephants across the Alps and into the heartland of Rome in 218 B.C. Until now, the route they took has been a matter of dispute, but thanks to modern-day technology, geomorphologist Bill Mahaney and microbiologist Chris Allen believe they've accurately traced this ancient journey.

Episode 3 continues to show the obstacles faced with charging electric bikes in remote places, but Ewan McGregor and Charley Boorman start to learn and evolve their process. The risk of cold temperatures is high but they bravely do it anyway. The duo is having a hard time of it out there but, thankfully, the scenery is absolutely stunning. Heading through Patagonia, Ewan and Charley stay at an eco-lodge in one of the world’s remotest areas with people that live off the grid.

We take it for granted, but every time we pick up a pen or type on the keyboard, we are employing the most powerful technology ever invented: the technology of writing. Explore how the invention of writing gave humanity a history. From hieroglyphs to emojis, the series is an exploration of the way in which the technology of writing has shaped the world we live in.
The invention of writing about 5,000 years ago made civilization itself possible, and every innovation of the modern world is based on the foundation of the written word. But how and where did writing begin, and who began it? In From Pictures to Words, the first of three films about the history of writing, we uncover the hidden links between all the diverse writing systems in use today and trace the origin of our own alphabet to a turquoise mine in the Sinai Desert and a man riding a donkey whose name was Khebded.

Ewan McGregor and Charley Boorman, after more than a decade since their last motorbike adventure around the world, will cover 13,000 miles over 100 days through 13 countries. Starting from the city of Ushuaia at the tip of South America, Ewan and Charley travel through the glorious and underexposed landscapes of South and Central America to Los Angeles in the United States in their most challenging expedition to date. In their journey they will use cutting-edge technology on the backs of their prototype electric Harley-Davidsons in order to contribute to the sustainability of the planet.
In the first episode, Ewan McGregor reunites with his best friend Charley Boorman to evaluate what's important in their lives, following a life-threatening accident of Charley.

How can we cope with the tricky coronavirus now rampant worldwide? As the pandemic tightens its grip on the world, there are important unanswered questions about this novel virus: Why does this infection spread so rapidly from people with no symptoms? Why do some people become critical while others don't? Will a definitive treatment be found? The underlying key to these questions lie in our immune system. Immune cells are microscopic warriors, combating viruses and another pathogens.
Through the high-tech 'eyes' of next-generation microscopes and computer-generated imagery, we will see how our immune defense corps combat against microbes and what mechanism is expected to help develop treatment.

NASA's brand-new Mars rover is on the hunt for alien life, and with the help of cutting-edge engineering, scientists embark on a search for fossilized remains, which might prove the Red Planet was once home to a vast ocean and extraterrestrial life. Perseverance carries seven scientific instruments to study the Martian surface at Jezero crater. It carries several cameras and two microphones. The rover is accompanied by the helicopter Ingenuity, which will help Perseverance to scout for locations to study.