Watch Dark Net

Humans are social beings - but what happens when the emotional bonds that bind us together are threatened by forces we cannot see or touch, or worse, replaced entirely by the network? In this episode, meet a woman who has programmed her dead friend into a chat bot so he can live on forever; a Japanese family who has adopted a childlike AI robot as a member of their tribe; and a desperate mom turning to spyware to track her teenager's every move. Season finale.

Communities are the bedrock of society - physical spaces where residents share a collective purpose and common goals. But the internet has given rise to a new kind of community where lies and hate can flourish. In this episode meet a would-be utopia in Spain where civic life is managed on Twitter; a teacher who becomes the target of a digital lynch mob; and the father of a school shooting victim who must prove to the internet that his son existed.

The digital era offers us new technologies to protect ourselves, but are these devices defending our homes or making them more vulnerable? In this episode meet a woman whose home is invaded by a Ratter, a digital stalker who gains entry through her laptop; enter a neighborhood where residents are battling over proposed camera surveillance to monitor everyone's coming and goings; and a sex offender who received the ultimate punishment for invading his victims' privacy - life under constant surveillance.

Our face is our most distinguishable feature. But to machines, our face is data and it's being transformed into a faceprint in somebody else's database. In this episode, meet a man whose life was ruined after facial recognition technology tied him to a crime he didn't commit; a father who's wired his home with face recognition technology to keep his autistic daughter safe; plus, exclusive access to the FBI Biometric Technology Center, where over half of American's biometrics have been uploaded into a database.

Alt-Right rebellion; brainwashed teen's parents; former Al-Qaeda recruiter.

Our lives revolve around money. Watch, as we enter the world of digital money: from the recesses of the dark net marketplace to workers in China excavating a new form of money; to 'bitcoin miners' struggling to cope with a potentially volatile algorithm; to a young cam worker whose sexual fetishes link them all together.

Online, any of us can become judge, jury and executioner. But how do we draw the line between the rule of law, and a digital lynch mob? In this episode, an amateur sleuth seeks justice in the case of a young woman's mysterious death - only to make a shocking discovery. Elsewhere, a digital activist takes a stand for social justice then finds himself forced to choose between prison and exile.

In this episode, meet Harmony, the world's first artificially intelligent sex robot; a woman who spends her days and nights uploading her mind to the algorithm; and a family whose lives were torn apart by over a decade of war - only to be saved by virtual reality.