Southern Africa is a riot of life and colour because of two great ocean currents that sweep around the continent's Cape. To the east, the warm Agulhas current generates clouds that roll inland to the wettest place in southern Africa. To the west is the cold Benguela current, home to more great white sharks than anywhere else. Moisture laden fog rolls inland, supporting an incredible desert garden. Where the two currents meet, the clash of warm and cold water creates one of the world's most fabulous natural spectacles - South Africa's sardine run. This is the greatest gathering of predators on the planet, including Africa's largest, the Bryde's whale.

In the fourth episode of the series, eyewitnesses recall how those in power at Auschwitz lined their pockets with wealth stolen from Jewish inmates while also engaging in illicit affairs.

American troops launch widespread 'search and destroy' operations; body count, not territory, becomes the measure of success in Vietnam. Charles Brown fights for survival on the bloody slopes of Hill 875 and at home, the American public begins to question U.S. military strategy.

In this second episode, a woman recounts her journey to becoming a mouthpiece for white nationalist hate speech, work that culminates in high-profile violence and murder. Samantha confesses how she became a spokesperson on the Internet for the hate speech of one of the many white nationalist groups that swarm the United States. And this fact ended in racist violence and death during an event.
'I had to start to realize what I was supporting. Was I the victim or was I also a villain?' says Samantha, looking into the camera. Hand in hand with xenophobia, digital true crime seems to have no respite, and so it will be shown how those supremacists work with good Wi-Fi.

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.

The global cyberwar is heating up and the stakes are no longer limited to the virtual world of computers. Now, thanks in part to secret documents released by Edward Snowden, the true scale of the National Security Agency's scope and power is coming to light. Besides spending billions of dollars to ingest and analyze the worlds' electronic communications, the NSA has set out to dominate a new battlefield—cyberspace. We examine the science and technology behind cyber warfare and asks if we are already in the midst of a deadly new arms race". Already, highly sophisticated, stealthy computer programs such as the notorious Stuxnet worm can take over and even destroy the control systems that regulate everything from food factories to gas pipelines, power plants, and chemical facilities—even our cars. While the destruction of Iranian centrifuges may have delayed Iran’s bomb program and forestalled an Israeli attack, the attack has opened a Pandora's Box, and now America's own critical infrastructure is vulnerable to retaliation and attack. With leading defense experts and investigative journalists who have probed the murky realm of criminal and strategic hacking, NOVA examines the chilling new reality of cyberwar in which no nation or individual is safe from attack.