In the near future, crime is patrolled by a mechanized police force. When one police droid, Chappie, is stolen and given new programming, he becomes the first robot with the ability to think and feel for himself.
In the year 2154, the very wealthy live on a man-made space station while the rest of the population resides on a ruined Earth. A man takes on a mission that could bring equality to the polarized worlds.
Violence ensues after an extraterrestrial race forced to live in slum-like conditions on Earth finds a kindred spirit in a government agent exposed to their biotechnology.