On the brink of losing her childhood home, Maddie discovers an intriguing job listing: wealthy helicopter parents looking for someone to “date” their introverted 19-year-old son, Percy, before he leaves for college. To her surprise, Maddie soon discovers the awkward Percy is no sure thing.
During a shootout in a saloon, Sheriff Hunt injures a suspicious stranger. The doctor’s assistant, wife of the local foreman, tends to him in prison. That night, the town is attacked and they both disappear—only the arrow of a cannibal tribe is found. Hunt and a few of his men go in search of the prisoner and the foreman’s wife.
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.
A reformed hunter becomes involved in a deadly game of cat and mouse when he and the local sheriff set out to track a vicious killer who may have kidnapped his daughter years ago.
