The rainforest is home to more species of plants and animals than any other habitat on the planet. But for humans, life there is not as easy as it looks. Life in the trees requires great skill, ingenuity and sheer bravery. The Matis of Brazil carve 4-metre-long blow-pipes to hunt monkeys - in near total silence. Deep in the Congo forests, Tete defies death by scaling a giant tree using nothing more than a liana vine, and he must then negotiate an angry swarm of bees - all to collect honey for his family. Three children from Venezuela's Piaroa tribe venture deep into the jungle to hunt tarantulas - to toast for lunch! In West Papua the Korowai tribe show-off their engineering skills by building a high-rise home 35 metres up in the tree tops. Most memorable of all, in Brazil we join a unique monitoring flight in search an un-contacted tribe...

What if aliens landed on Earth? Much of science fiction explores the moment of first contact – what will people do when the aliens land? From H. G. Wells’ pioneering The War of the Worlds to Independence Day, Men in Black, and District 9, Invasion deals with our fears of alien invasions of earth. David Tennant explains the appeal of Doctor Who’s Daleks and Cybermen while John Carpenter and Chris Carter explore the rich appeal of the paranoia fuelled by hidden aliens with The Thing and The X-Files. It also asks, what if the monsters were our own creation? With the aid of rarely seen animation tests, Phil Tippett takes us behind the scenes in the creation of the dinosaurs of Jurassic Park. But not all invasions are hostile. Peter Coyote and Richard Dreyfuss discuss the creation of Spielberg’s spellbinding classics E.T. the Extra-Terrestrial and Close Encounters of the Third Kind. There is more than one kind of invasion.

Ideas about time and space are explored in the changes that constellations undergo over time, the redshift and blue shift measured in interstellar objects, time dilation in Albert Einstein's theory of relativity, the designs of both Leonardo da Vinci and spacecraft that could travel near light speed, time travel and its hypothetical effects on human history, the origins of the Solar System, the history of life, and the immensity of space. In Cosmos Update, the idea of faster-than-light travel by wormholes (researched by Kip Thorne and shown in Sagan’s novel Contact) is discussed.

The first outing of the Miami Grand Prix is starting, and Ferrari looks to continue their successful streak starting from Bahrain and Australia into Miami. Ferrari's two drivers Charles Leclerc - who is leading the Drivers' Championship coming into the race - and Carlos Sainz Jr. lock out the first two rows of the grid. In the race, Verstappen immediately takes second from Sainz, and would take the lead by the ninth lap. Soon, McLaren's Lando Norris makes contact with Pierre Gasly of AlphaTauri, bringing out the safety car. Leclerc's old tires soon give him a disadvantage, which Verstappen exploits in his first victory in Miami. Leclerc finishes second ahead of his teammate.
As the season continues, Ferrari continues to make errors that end up costing their drivers the win; in Monaco, Leclerc leads the race as Sainz is brought in - but Leclerc, having been told to come in too, follows Sainz into the pits - only being told to stay out after he had already came in for his stop - handing Red Bull's Sergio Pérez the victory as Leclerc finishes fourth; in Baku, both Ferraris - Leclerc leading - retire due to mechanical failure with Verstappen winning; and in Canada, both Ferraris stay out again and are inconvenienced by their old rubber, handing Verstappen the win once again.
At a rainy Silverstone qualification, Sainz scores his first pole position in his career, and Leclerc, having spun earlier in quali, takes third. The race starts with a big crash for Zhou Guanyu, red-flagging the race. The race starts with Sainz, having retained his grid position, getting a good start; by lap ten, Sainz continues to control the field, but makes an error, allowing Verstappen to take the lead. However, the Red Bull driver reports a puncture and pits, allowing Sainz to take the lead again with Leclerc behind. Soon, the Ferrari pit wall tells Sainz to give the position to Leclerc as Esteban Ocon retires due to mechanical issues, bringing out a safety car. As Leclerc is told to stay out on his old tires, Sainz is brought in for fresh rubber. The race restarts and Sainz overtakes his struggling teammate for first, going on to win his first race in his career. Mattia Binotto, acknowledging the strategical errors made throughout the season thus far, resolves to fix them in the following races.

They've discovered water on other planets, and snatched the actual building blocks of life from a comet's tail. But can space probes find a new Earth...and even make contact with alien life? In the 21st century, space probes are photographing, drilling and even sniffing new worlds in the quest for life, and scanning thousands of distant suns trying to detect Earth-like planets. It's only a matter of time before space probes unlock the secrets to extra-terrestrial life and the universe itself.

An apocryphal view on the pyramids, starting in awe at the amazing achievement of the Pharaonic architecture and sculpture, most specially at Gizeh, given Cheops's pyramid's size, weight, incredibly precise carving, four pairs of slightly shifted half sides, stunningly precisely measured shapes and symmetry. Then it questions and challenges conventional Egyptology beliefs, which it calls unproven or even impossible to verify, such as the absence of machines, a wharf duration of only 20 years or accidental equinox-orientation. Next it elaborates the theory that other major pyramid technology sites in Precolombian America, Easter Island and China can't coincidentally lie on two lines intersecting at Gizeh, even if not contemporaneous and without known contacts in their ages, and have several improbable things in common, like some of their cultures. Elaborate mathematical theories and measurements indicate the Egyptians must have known some astronomy, pi and the golden number