1942年，十万中国远征军溃败怒江，五万英灵长存边缅。时隔一年后，远征军军部得到密电，日军正在野人山中研制一种毒气弹，如果被日军得逞，怒江沿岸局势堪危，将直接影响到反法西斯战局。于是，军部决定派遣一支特别小分队，跨过怒江，潜入野人山阻止日军的阴谋。特别小分队的队员们克服野人山严苛的自然环境，步步为营，与日军斗智斗勇，展开了激烈而悲壮的抗争。与此同时，驻守怒江沿线的国军第36军与腾冲中共地下党紧密合作，营救人质，牵制日军，为小分队的行动提供了掩护和支援。几经坎坷磨难，特种小队二进二出野人山，终于在危机爆发关头摧毁日军的阴谋，为战局的扭转做出了重大贡献。不久后，远征军以野人山为突破口，拉开了滇西战略大反攻的序幕

In 1942, the Chinese government received intelligence that the Japanese may be developing a dangerous biological weapon in a remote part of Burma.The Chinese Expeditionary Force, a secret specialized squad, is dispatched to the remote region to try to stop the Japanese actions. Led by the tough female commander, the highly trained soldiers can't seem to get along.