It's 1949 Los Angeles, the city is run by gangsters and a malicious mobster, Mickey Cohen. Determined to end the corruption, John O'Mara assembles a team of cops, ready to take down the ruthless leader and restore peace to the city.
Mobster and hit man Jimmy Conlon has one night to figure out where his loyalties lie: with his estranged son, Mike, whose life is in danger, or his longtime best friend, mob boss Shawn Maguire, who wants Mike to pay for the death of his own son.