Sara's companion robot which she's nicknamed "PJ".

Thousands of years in the future, a city known as “Eden 3” is inhabited solely by robots whose former masters vanished a long time ago. On a routine assignment, two farming robots accidentally awaken a human baby girl from stasis questioning all they were taught to believe -- that humans were nothing more than a forbidden ancient myth. Together, the two robots secretly raise the child in a safe haven outside Eden.<br><br>(Source: Netflix, edited)

PJ3