Steve McQueen’s “Blitz” tells the epic journey of George (Elliot Heffernan), a 9-year-old boy in London during World War II, whose mother Rita (Sierra Ronan) sends him to a safe place in the English countryside. . George, defiant and determined to return home to his mother and grandfather Gerald (Paul Weller) in East London, embarks on an adventure only to find himself in grave danger as a distraught Rita searches for her missing son.