Former Police Sergeant Barnes becomes head of security for Senator Charlie Roan, a Presidential candidate targeted for death on Purge night due to her vow to eliminate the Purge.
A wealthy family are held hostage for harboring the target of a murderous syndicate during the Purge, a 12-hour period in which any and all crime is legal.
The worst is yet to come, despite Joel's belief that his troubles are finished after getting his mother in a care facility for dementia. It goes deeply into issues of love, friendship, and the fear that everyone has of losing themselves.