chunk: The film opens with on-screen text stating: "A true story". It is August 1941, and Nazi Einsatz-Gruppen (task forces) are sweeping through Eastern Europe, systematically killing Jews. Among the survivors not killed or restricted to ghettoes are the Polish Jewish Bielski brothers: Tuvia (Daniel Craig), Zus (Liev Schreiber), Asael (Jamie Bell) and Aron (George MacKay). Their parents are dead, slain by the local police under orders from the occupying Germans. The brothers flee to the Naliboki Forest, vowing to avenge their parents.