 In 1997, novice police officers André Matias () and Neto Gouveia (Caio Junqueira) use a sniper rifle telescope to observe officer Captain Oliveira (Marcelo Valle) and other policemen rendezvous with drug traffickers.Neto accidentally pulls the trigger, causing a deadly gunfight between the officers and thugs since both sides are unaware of where the bullet came from.As Mathias and Neto flee the scene, Nascimento and his men head to the shootout to rescue the police officers.