To push the crime rate below one percent for the rest of the year, the New Founding Fathers of America test a sociological theory that vents aggression for one night in one isolated community. But when the violence of oppressors meets the rage of the others, the contagion will explode from the trial-city borders and spread across the nation.

All the rules are broken as a sect of lawless marauders decides that the annual Purge does not stop at daybreak and instead should never end as they chase a group of immigrants who they want to punish because of their harsh historical past.

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.

Undercover U.S. agent Bill Wilson makes the bust of his career taking down a cartel leader. Hiding the evidence in his home exposes his family to a brutal targeting on the night of the annual Purge, the deadliest night of the year.

As Carl Black gets the opportunity to move his family out of Chicago in hope of a better life, their arrival in Beverly Hills is timed with that city's annual purge, where all crime is legal for twelve hours.

After becoming the victim of vicious cyber bullies, Lisa makes a deal with the devil to exact revenge on her tormentors.

In the 1930’s, the workers of the underground, headed by brigades of writers, are in charge to write in real time "the history of the Moscow Metro". Based on their narratives, partially unpublished, the film recounts the first lines construction of the most beautifiul underground in the world, in the light of this "big literary Utopia", stoped by the purges of 1937-38.