In 2023, as people across America prepare for the annual Purge, where all crimes are legalized, an anti-Purge resistance group formed by Carmelo Johns hacks into live feeds to denounce the NFFA.

In L.A., waitress Eva Sanchez returns home to her daughter Cali and terminally ill father Rico. As Eva and Cali prepare to barricade themselves, Rico slips out to a waiting limousine. He has offered to be killed by a wealthy family in exchange for money paid to Eva and Cali. Meanwhile, estranged married couple Shane and Liz visit a grocery store, only to be harassed by a masked gang of skateboarders and dirt bikers. Their car breaks down after being tampered with by the biker gang.