1949 Los Angeles has become a battleground. Mob leader Mickey Cohen (Sean Penn) is taking control of the city, and none will raise a finger to stop him. Sgt. John O'Hara (Josh Brolin) is told to put together a group of men from the police force to take back the city from Cohen's grip- by any means necessary.
Though off to a rough start, the vigilante lawmen, self-proclaimed the 'Gangster Squad', are able to put a hurt on Mickey's operations, unfortunately putting them on his radar and at the top of his list. Just when they think they are unstoppable, events take a turn and the Squad finds themselves fighting not only for their own lives, but the lives of the people they care about.
This movie sucked audiences into a world where World War 2 had finally ended, and the war for L.A. had just begun. People were on the edge of their seats sympathizing with characters that were easy to become attached to, hoping they would succeed and not die.
Director Ruben Fleischer did a good job bringing 1949 L.A. to life on the screen. The on screen chemistry of the Squad made this movie engaging and funny. Ryan Gosling, Robert Patrick, Anthony Mackie, Michael Pena and Giovanni Ribisi make this rag-tag group of men plucky heroes who bring light in a time of darkness.