The Internet enables us to connect with people, images and information in ways that were unimaginable 30 years ago. But with every click we are re-wiring the physical structure of our brains. Are we evolving or actively de-evolving down a dopamine-laced click-hole? In this episode meet a 17-year-old boy struggling with an addiction to online pornography; autistic technologists in Silicon Valley who are turning their genetic variation to an advantage; plus, Nootropics, a class of cognition-enhancing supplements that claims to rewire the brain.

It's Valentine's Day and Maddi steps out on her first ever date with a romantic man. Kelvin works with a relationship specialist and puts his dating skills to the test. Michael is overwhelmed when he meets the woman of his dreams.

Richard Dawkins deals with some of the philosophical and social ramifications of the theory of evolution. Dawkins starts out in Kenya, speaking with palaeontologist Richard Leakey. He then visits Christ is the Answer Ministries, Kenya's largest Pentecostal church, to interview Bishop Bonifes Adoyo. Adoyo has led the movement to press Kenya's national museum to sideline its collection of hominid bones pointing to man's evolution from ape to human.[5] The collection includes the Turkana Boy discovered by Kamoya Kimeu, a member of a team led by Richard Leakey in 1984. Dawkins discusses social darwinism and eugenics, explaining how these are not versions of natural selection, and that 'Darwin has been wrongly tainted'. He then meets with evolutionary psychologist Steven Pinker to discuss how morals can be compatible with natural selection. He goes on to explaining sexual selection, with peafowls as an example. To find out whether sexual selection plays a role for altruism and kindness among humans, he visits women who are looking for sperm donors, as well as a sperm bank manager. Dawkins also explains kin selection and selfish genes.

Although the end of the Soviet Union also meant the end of the KGB, it did not mean the end of secret service activities. FSB and the foreign intelligence service SVR took over the tasks. Under the secret service officer Vladimir Putin, the tasks of the secret service were redefined, and digital age with the Internet brought new possibilities for internal and external espionage and for the manipulation of public opinion.
Coup d'etats, assassinations, sex scandals, radioactive poisoning....it's the stuff of a Bond movie. But in today's Russia, it's all very real. Under Vladimir Putin, the FSB rules Russia with an iron rod directly from the Kremlin. To challenge its authority, even from apparent safety abroad, means risking your life. The KGB has even managed to outlive communism itself. Today, Russia is no longer a State with a Security Service: instead, the Security Service has a State.

Sex is the key to the immortality of genes, and any tactic necessary will be deployed in the cause of reproduction - even if it's suicidal to the participant. This episode explores many of the most ingenious, complex, and dramatic methods that animals employ to ensure the continuation of their genetic line.

Boy or girl? It’s the eternal question. But that question may have more than two answers. Science reveals the line between male and female is blurred. And the battle of the sexes is happening deep within our cells. Are there more than two sexes?