BasedonatruestoryoftheAmericanCivilWar,culminatingattheBattleofNewMarket,May1864.AgroupofteenagecadetsshelteredfromwarattheVirginiaMilitaryInstitutemustconfrontthehorrorsofanadultworldwhentheyarecalledupontodefendtheShenandoahValley.Leavingbehindtheiryouth,thesecadetsmustdecidewhattheyarefightingfor.