These days, events are unfolding around forest fires in the Chornobyl zone. A series of fires near the nuclear power plant threatens to become a terrible catastrophe for the country and destroy the lives of thousands of people. The head of the SES unit, an experienced and determined firefighter Andriy Troyan, has to catch the dangerous arsonist and prevent the tragedy. But the investigation of the crime becomes a real test for the protagonist - he will have to survive the loss of a loved one, imprisonment and uncover many secrets, of which he will be a part.