A group of homeless misfits must fight for survival when they discover a plot to exterminate every homeless person in the city.

影片讲述了联邦调查局特工李·哈克受命调查一桩悬而未决的连环杀人案件，哈克发现与凶手有私人关系，因此必须在他再次发动袭击之前阻止他。