"Final Grades" is the 13th and final episode of the fourth season of the HBO original series The Wire. Written by David Simon from a story by David Simon & Ed Burns, and directed by Ernest Dickerson, it originally aired on December 10, 2006. The running time of this episode is 78 minutes, making it the second longest episode of the series. Although most obviously referring to the test grades received by the school's students, the title also refers to the final evaluation of Parenti and Colvin's pilot program, Chris and Snoop's evaluations of O-Dog and Michael's skills, and to the end-of-year statistics which Carcetti leaves in Royce's name. This is printed on the wooden doors used to close off the vacant houses in West Baltimore. The text has appeared several times in past seasons. The number actually connects with an automated message giving the local Baltimore time. The quote references many of the season's characters, who appear hopelessly trapped by their environment. Sergeant Jay ...