Aliens land in South Africa and have no way home. Years later after living in a slum and wearing out their welcome the "Non-Humans" are being moved to a new tent city overseen by Multi-National United (MNU). The movie follows an MNU employee tasked with leading the relocation and his relationship with one of the alien leaders.
The film gradually crosses over to being a more conventional film, although still filmed with a very documentarian look and interspersed with occasional news footage or interviews.
The first half of the film is told through a documentary style footage, with people talking directly to the camera explaining the backstory of the mothership and basically setting up the rest of the film.