The purge in the future, a wealthy family is held hostage for harboring the target of a murderous syndicate during the purge, a 12 hour period in which any and all crime is legalized.the purge anarchy three groups of people are trying to survive purge night, when their stories intertwine and are left stranded in the purge trying to survive the chaos and violence that occurs.the purge election year years after sparing the man who killed his son, former police sergeant barnes has become head of security for senator charlie roan, a presidential candidate targeted for death on purge night due to her vow to eliminate the purge.