The life of the Bolshevik revolutionary Simon Ter-Petrosian (Kamo) was dedicated entirely to the highest ideals of liberation from the slavery of capitalist exploitation.
Kamo, whom Lenin characterized as a "man of absolute dedication, courage, and activity," was a prominent figure among the Bolsheviks, with a special talent for illegal work. He participated in setting up illegal printing presses, finding and transporting weapons during the period of the Revolution, and engaging in a series of militant actions.

The narration of his life is a source of lessons. The book highlights the virtues of the tireless fighter, the professional revolutionary, the great ingenuity and initiative that distinguish revolutionary-conspiratorial work, the fearlessness in the face of danger, and the various methods of illegal action that the revolutionary discovers to achieve his goal.