Theborderof820iswheretheNorthandSouthKoreasstandfacetoface.ElitefemalelieutenantKwonJin-kyeongfromtheKoreanMilitaryAcademyand4othercavalrybattalionsareonpatrolontheirlastdayoftraining.Meanwhile,studentsfromthephotographyclubgetlostontheirwaytocheckoutsceneryandenterBAse820.Anunknownshotisfiredandthegroupisterrif...
