解放初期匪患肆虐,解放(fàng )军侦察排长向(xiàng )阳奉命前往三(sān )湾里剿匪(fěi ),乔装潜入时竟(jìng )与已是清风寨(zhài )三当家的亲哥(gē )向天重逢。兄(xiōng )弟二人因立场(chǎng )相悖,在情义与(yǔ )信仰间激(jī )烈交锋,向阳强(qiáng )忍纠葛卧底匪(fěi )寨,智取情报、烧毁粮仓,与战友里应外合(hé )展开围剿。面对(duì )龙瞎子等(děng )匪首的残暴反(fǎn )扑,向阳带领部(bù )队浴血拼杀,在(zài )哥哥向天的牺牲帮助下,最(zuì )终彻底剿灭清(qīng )风寨匪帮。血与火的较量(liàng )后,这片土地终(zhōng )于迎来和平曙(shǔ )光。