Mega City One is a vast, violent metropolis where the street cops called “Judges” have the power to act as judge, jury and executioner. Known and feared throughout the city, Dredd (Karl Urban) is the ultimate Judge. Assigned to train and evaluate Anderson (Olivia Thirlby), a rookie with powerful psychic abilities, Dredd is called to investigate a triple homicide in a 200-storey vertical slum controlled by the ruthless Ma-Ma clan. After arresting one of the clan’s inner circle, Ma-Ma (Lena Headey) shuts down the entire building and wages a vicious war against the Judges. With the body count climbing and no way out, Dredd and Anderson must engage in a relentless battle for their survival.