The third chapter in the successful film series finds former LAPD sergeant Leo Barnes (Frank Grillo) working as chief of security for Senator Charlie Roan (Elizabeth Mitchell), a presidential hopeful running on a promise to end the Purge. But as the 12-hour period of legalized mayhem begins, Barnes and Roan must try and stay alive on the streets of Washington, D.C. while pro-Purge forces try to eliminate the would-be POTUS. With Mykelti Williamson, Joseph Julian Soria, and Edwin Hodge. 109 min. Widescreen (Enhanced); Soundtracks: English DTS HD 5.1 Master Audio, DVS Dolby Digital stereo, French DTS 5.1, Spanish DTS 5.1; Subtitles: English (SDH), French, Spanish; deleted scenes; featurette; character profile.