Peter "Koza" Baláž is struggling to make ends meet. Miša learns that she is expecting a child and decides to terminate her pregnancy. She pressures Koza to get money for the procedure. Koza, who has not trained in a while, steps back into the ring, hoping to earn some much-needed cash and possibly change Miša's mind. He and his manager, Zvonko, embark on a ""tour"", where success is not measured in victories, but in the amount of blows that Koza can take.
KOZA features Peter Baláž, who competed at the 1996 Olympic Games in Atlanta, and Ján Franek, Olympic medallist from Moscow 1980, as his coach. Featuring the outstanding performances of non-professional actors and blurring the lines between representation and presence, KOZA is a powerful and haunting challenge to the concept of authenticity.