The TV series "Tough Measures" is a Russian detective drama action film about a former military man seeking revenge for his brother's death. Captain of the special forces, Egor Morozov, returns to his hometown after a military operation. His younger brother, Kirill, known to everyone as a successful businessman, turns out to be the secret leader of a criminal gang called "Moroz" (Frost), and soon he is killed by rivals "in the business". Egor decides to avenge him, but not on his own, but within the law, so he joins the local police as an undercover agent.