This movie is similar to Assault on Precinct 13 and the Warriors where there are waves of crazy ferocious gang members who try to capture and pillage the building where some young lost teenage party-goers have been left stranded.

2 couples miss their exit on a Chicago expressway and take the next exit and end up in a war zone of a neighborhood. They give a ride to someone that is looking to get out of the area but turns out he is from a rival gang and the Chains, the territory controlling gang is after him. Soon it becomes a race to survive the night, running from the gangs, hiding in old factories and doing whatever it takes to survive.—RM