with 12 episodes premiered on April 17, 2011

An ordinary boy from a suburb of Sofia became the first undercover police officer in Bulgaria. Forced as a child by his father to steal and cheat, Martin becomes the perfect liar. This skill of his, … see more

with 12 episodes premiered on November 20, 2011

After the beating of Emil Popov, Petar Tudzharov - Djaro found out that the commissar had survived. In order to save his life and business, the mob boss must look for new solutions. Undercover agent … see more

with 12 episodes premiered on November 25, 2012

After the arrest of Djaro and a serious shake-up of his position, Martin remains in the underworld as an undercover cop. This time his enemies are more and stronger. His new enemy is Ivo Andonov. Aft… see more

with 12 episodes premiered on January 19, 2014

Six months after the recent events, Martin Hristov is officially a police officer in the GDBOP, in the department of Commissioner Emil Popov. Ivo rules the street, disguised behind a legal business. … see more

with 12 episodes premiered on March 20, 2016

Djaro is killed by Popov and someone will have to take his place. It is most natural that it should be Ivo. Undercover cop Martin is exposed and takes over Popov's old team. Now Errol - the new under… see more