20 Days in Mariupol is a brutal documentary with a devastating emotional impact. Mstyslav Chernov and his colleagues, all Associated Press correspondents, are trapped in a city that is impossible to get out of, and live the nightmare of war together with the people of Mariupol. As bombs fall, people die, and access to electricity, food, water and medicine is cut off, cameras capture ferocious scenes that these journalists struggle to broadcast around the world.