A new generation of human-like robots -- "hubots" -- provide all manner of services to the human race. But some of these hubots, known as the "Children of David," free themselves from the control of their masters.

Kidnapped by traffickers and separated from other rebel hubots, the hubot Mimi is sold on the black market. Another Child of David, Leo, leaves the protection of the group and goes in search of her.

A double murder is discovered in the old house where the rogue hubots charged their batteries and the police take up the hunt for the perpetrators. Inger has trouble accepting Anita, while at the same time money starts disappearing around the house. Roger's hatred of all hubots grows, especially the one his ex-wife lives with.

The rogue hubots take refuge in an old church, where the pastor offers them sanctuary in the vicarage, believing that hubots would never harm humans. Granddad Lennart has trouble accepting his new housekeeper and takes every chance he can get to get away from her and enjoy the freedom he once had with Odi.

Therese and Pilar feel humiliated when their hubot boyfriends aren't treated as humans. At the same time, Roger's anti-hubot group begins plotting violence. But why is Bea acting so strangely? And how does she know Niska?

The truth about David Eischer's experiments leaks out to the police, and Inger Engman suddenly understands the link to Anita. Kevin gets tired of Rick's bullying and returns to a home and a stepfather he doesn’t recognise. And after a successful flight attempt, Leo finds his beloved Mimi.

In the final episode, everyone wants the code, which in the wrong hands could spell disaster for humankind. Leo is very weak, but continues to flee with Mimi in the underground passages of the metro. Bea and Carl are both after them, both trying to reach them first. At the same time, Tobias has a strange gift in his room.

A virus is spreading like a pandemic, making infected hubots uncontrollable and dangerous. Bea is reactivated after several months, and she resumes her desperate search for David's lost code.

Bea continues searching for the code that makes machines human. In her search for the scientist David Eischer’s clone, she seeks out David’s mother. Tobias struggles with his transhuman sexuality, as his heart still longs for Mimi. The Engman family receives a package containing their Granddad’s clone. Meanwhile, at Hub Battle Land, Silas works to get the business off the ground and Roger arrives for a job interview.

Bea and Cloette have finally located David’s clone, but the brain is missing. They continue their search while Tobias and Matilda investigate the code on the USB drive. A segment is missing and Matilda suspects that Mimi knows more than she lets on. When Roger is sent out to pick up a hubot, he’s in for an unpleasant reunion. Florentine’s dream is about to come true - she’s finally going to marry her Douglas. But perhaps human life is not all it’s cracked up to be.

Douglas and Florentine plan their wedding, and Claes can’t help interfering. Back at the Engmans’, Lennart’s clone is increasingly obstinate, in particular towards Hans, who is starting to lose patience. Mimi is hired at the law firm, but not everyone likes having a hubot as a colleague. The conflict between Real Humans and the Transhumans grows increasingly antagonistic. Sooner or later everyone will have to choose sides.