Elite Squad: The Enemy Within

Captain Nascimento is the commander-in-chief of Rio de Janeiro's BOPE (Special Police Operations Battalion), later promoted to sub-Secretary of Security for the State. After a disastrous operation on a prison riot, Nascimento gets caught in a bloody political dispute that involves not only government officials, but also deadly paramilitary groups known as the militias. Nascimento quickly emerges as victim of his own success -- in tackling Rio's drug gangs, he creates a vacuum filled by protection rackets supported by corrupt police.