An aimless adolescent (Ellen Page) joins several itinerant misfits who live on the fringe of society and welcome at-risk youths into their fold.

After the elevators at a New York City skyscraper begin inexplicably malfunctioning, putting its passengers at risk, mechanic Mark Newman (James Marshall) and reporter Jennifer Evans (Naomi Watts) begin separate…

The Earth is invaded by alien parasites aka “slugs” that ride on people’s backs and control their minds. A trio of American government agents attempt to thwart this.