In the second episode of the series, the Germanic tribes strike as Marcus Aurelius succumbs to disease, leaving a skeptical Emperor Commodus to prosecute a war that doesn't interest him.

A child lies on the rug of a tenement dreaming of interstellar adventures. At the dawn of the space age, a young Carl Sagan’s career is forged in the clash of his mentors, two scientific titans. Sagan goes on realize his childhood dreams, to carry their research forward and communicate its significance to the whole world.

One of the main battles of the Second World War took place inside the brain of a mathematician called Alan Turing. During the war, the allies' key objective was to crack the German army's encrypted communications code. Without a doubt, the key player in the game was this interdisciplinary scientist and a long-forgotten hero.
Alan Turing's breakthroughs, his story and tragic destiny, gives us a chance to look at the Second World War from a different angle.

Morgan Freeman will take viewers on a global journey to meet with people from all cultures whose lives are shaped in surprising ways by different fundamental forces, this time exploring themes that unite us all. Each episode will explore a single fundamental force or topic, including love, belief, power, war and peace, rebellion and freedom.
In the first episode, Freeman travels around the world in search of a greater understanding of the concept of freedom. From solitary confinement and forced labor camps, to social taboos and laws that hinder speech and expression, freedom seems to be a constant struggle. As individuals and as entire nations, we are confronted with the question: Will we all ever be truly free?

The second programme deals with the mechanics of flight. Getting into the air is by far the most exhausting of a bird's activities, and Sir Attenborough observes shearwaters in Japan that have taken to climbing trees to give them a good jumping-off point. The albatross is so large that it can only launch itself after a run-up to create a flow of air over its wings. A combination of aerodynamics and upward air currents (or thermals), together with the act of flapping or gliding is what keeps a bird aloft. Landing requires less energy but a greater degree of skill, particularly for a big bird, such as a swan. Weight is kept to a minimum by having a beak made of keratin instead of bone, a light frame, and a coat of feathers, which is maintained fastidiously. The peregrine falcon holds the record for being fastest in the air, diving at speeds of over 300 km/h. Conversely, the barn owl owes its predatory success to flying slowly, while the kestrel spots its quarry by hovering. However, the true specialists in this regard are the hummingbirds, whose wings beat at the rate of 25 times a second. The habits of migratory birds are explored. After stocking up with food during the brief summer of the north, such species will set off on huge journeys southwards. Some, such as snow geese, travel continuously, using both the stars and the sun for navigation. They are contrasted with hawks and vultures, which glide overland on warm air, and therefore have to stop overnight.

The metaverse is an environment where humans interact socially and economically through a software in cyberspace, which acts as a metaphor for the real world, but without its limitations. The metaverse is generally composed of multiple three-dimensional, shared and persistent virtual spaces linked to a perceived virtual universe. This virtual world is often facilitated by the use of virtual reality (VR) or augmented reality (AR) headsets and avatars. The Metaverse is the successor to the internet. It will change the lives of almost every human on the planet.