The Purge: Anarchy

The movie begins in the year 2023, and the government credits the annual purge, it sanctions a period of twelve hours where anyone is allowed to commit a Crime because all the Crimes turn legal during that period including murders. There is an anti purge group that is formed to stop the government from beginning the sixth annual purge. But the annual purge commences and all the people move out to commit Crimes without any fear of punishment. A married couple is attacked by a gang of bikers, but however, they manage to run from them. There is an off duty police officer, a sergeant Leo Barnes, who also moves out to take the revenge of his son’s death. He plans a mission to murder his son’s killer. Eva and Cali, mother and daughter are also attacked and are taken to the attackers leader Big Daddy but they are saved by the Sergeant.
One night per year, the government sanctions a 12-hour period in which citizens can commit any crime they wish -- including murder -- without fear of punishment or imprisonment. Leo, a sergeant who lost his son, plans a vigilante mission of revenge during the mayhem. However, instead of a death-dealing avenger, he becomes the unexpected protector of four innocent strangers who desperately need his help if they are to survive the night.