The main characters are Nikola Dejanov, played by Stefan Danailov and Dimitar Bombov, nicknamed "Mitko Bombata" (Mitko the Bomb), played by Grigor Vachkov.
They are childhood friends, both communists, spies, and partisans.
Among the writers of the film are Pavel Vezhinov, and the poet and dissident Georgi Markov.
Directors of the series are Lubomir Sharlandjiev and Nedelcho Chernev.
The production is funded by the ruling Bulgarian Communist Party and is dedicated to the 25th anniversary of the coup of September 9, 1944, presented as a popular uprising.