On Christmas Eve, an uneventful day turns the world of two people upside down.
Milo tries to be a family man and run his criminal organization, but a wrong drug shipment endangers everything.
An undercover cop and a mole in the police attempt to identify each other while infiltrating an Irish gang in South Boston.
When the menace known as the Joker wreaks havoc and chaos on the people of Gotham, Batman must accept one of the greatest psychological and physical tests of his ability to fight injustice.