号称世界上最危险的城市——巴西里约热内卢，警匪枪战时有发生。恶徒肆意横行，死亡如同家常便饭，甚至警匪沆瀣一气，危害城市。但就在这个混乱所在，却有一支刚正严明的部队横空出世。特别警察军事行动部队（Special Police Operation Battalion）凭借其果敢凶狠的办案作风而令匪徒闻风丧胆。
时1997年，教皇即将来此视察，高层要求纳斯西蒙（Wagner Moura 饰）所率领的这支精英部队在最短时间内肃清贫民窟内的毒品链。厌倦刀光血影的纳斯西蒙将心思放在了妻子和尚未出世的婴儿身上，他将任务交给了两个热血且充满理想的年青人——内图（Caio Junqueira 饰）和马提阿斯（André Ramiro 饰）。他们俩都不满警察队伍的腐败，决心在精英部队中大展身手……
本片荣获2008年柏林国际电影节金熊奖。

Julius is a photographer working as a men's magazine photo retoucher. His wife, Marcia, is a criminal lawyer who defends Teodoro, a squatter accused of murder. For years they had a quiet wedlock. However, Marcia gets involved with her client, and as revenge, Julius sleeps with Ana Maria, a friend of their daughter Guida. From this episode on, their lives are no longer the same.

An ubiquitous folk singer narrates the tale of a young boy, who apparently becomes immune to gunfire after his mother arranges for him to have an amulet bearing Ogum's blessings. As time goes by, he becomes a valuable member of a mobster's hit-team, but ends up joining a group of people who resist his original employers.

Julius is a photographer working as a men's magazine photo retoucher. His wife, Marcia, is a criminal lawyer who defends Teodoro, a squatter accused of murder. For years they had a quiet wedlock. However, Marcia gets involved with her client, and as revenge, Julius sleeps with Ana Maria, a friend of their daughter Guida. From this episode on, their lives are no longer the same.

Augusto Matraga is a violent agressive farmer who, after being betrayed by his wife and trapped by several enemies, is bitten up and left for dead, being rescued by a couple of humble small farmers who nurse him for a long time until he is well again. Influenced by the couple, Matraga starts a long penitent life while waiting for his hour and chance to payback, starting a fight between his violent nature, his hidden desire of vengeance and the mysticism and goodness which is also part of him.