Rosie and Adam have safely made it to the Arcadia commune, a secret hideout for robots on the run who are selected to be deleted, and their human lovers.
Rosie is given the option to upgrade Adam's emotional core and subject him to free will, but that may result in him choosing not to love her.
Meanwhile, Arcadia residents have plans to upgrade all robots to free will, but this means heading back into the city where Rosie and Adam are most wanted...