Ten years after a brutal virus has wiped out most of the population, it follows two siblings on a search for safety only guided by their father's notebook about the virus and the hazards of this new world. They join another group of young survivors, who quickly realise that the real danger comes from within.
Set in an alternate version of modern day Sweden where humanoid robot workers and servants are widespread, the series follows the resulting emotional effects on two families as well as the trials of a group of robots who have attained free will and want their freedom from human ownership.