The film tells about Academician V.V. Pokrovsky, who devoted his life to the fight against AIDS. The following filming was used in the film: Academician V.V. Pokrovsky talks (sync. And behind the scenes) about his work, about patients, a general view of the railway tracks, the hospital building is driving in a car, the boy is walking along the hospital corridor; type of medical equipment in one of the hospital rooms; general view of test tubes with blood; pupils of the Moscow Orphanage No. 7 play with blocks, swing on a swing, ride a carousel, a nurse feeds a child; the boy rides a bicycle; general view of people in the airport lounge; HIV-infected sick people talk (off-screen) about how they got sick. Newsreel footage: people at a rally, nurses in a hospital procedure room, taking blood from a boy for analysis.