UNIT 7 has a tough assignment: to clean the most dangerous drug trafficking networks out of the city and bring an end to the corrosive power that has taken hold of the streets... See full synopsis

The seventh group received a difficult task : they were ordered to clear the city 's most dangerous drug dealing network , the corrosive evil of these shares occupy the streets a clean sweep . The seventh group is played by Aacutengel (Mario Casas ) led , he was a young aspiring police officers . And his partner played by Rafael (Antonio de la Torre ) is a rude, arrogant but very efficient police . In the process of handling cases , the seventh group of case-handling practices go beyond the law , their violence, intimidation , coercion , and even Mongolia with deception, falsehoods . For them, as long as you can complete the task by all means can be used. However, in when they are about to complete the task , the two partners began to diverge . Rafael fell in love with the beautiful and mysterious Lucia, an angel police officers and the devil officers of the contest between them quietly .