During a morning jog in the park, Artyom detains two juvenile delinquents — guys who robbed a passerby. Later it turns out how these two found potential victims, choosing an acquaintance for the role of "gunner".

Football referee Oleg Dubinin, who came to the match but never appeared on the field, disappears. The match inspector urgently has to release a substitute, but the other referee judges biased. It's good that Artyom, Mukhtar and Vadik turn out to be at the match, who begin an investigation in hot pursuit...