話說現在美帝亦係由一個殺人政權當政，而國定殺戳日係一個「行之有效」，可以 Make America Great Again 的重要日子，遊戲規則是咁的：
This is not a test. This is your Emergency Broadcast System announcing the commencement of the Annual Purge sanctioned by the U.S. Government. Weapons of class 4 and lower have been authorized for use during the Purge. All other weapons are restricted. Government officials of ranking 10 have been granted immunity from the Purge and shall not be harmed. Commencing at the siren, any and all crime, including murder, will be legal for 12 continuous hours. Police, fire, and emergency medical services will be unavailable until tomorrow morning at 7 a.m., when The Purge concludes. Blessed be our New Founding Fathers and America, a nation reborn. May God be with you all." Emergency Broadcast System announcing the commencement of The Purge