In 1990, $300 million worth of paintings were stolen from Boston's Isabella Stewart Gardner Museum in what remains one of the greatest unsolved art thefts of the twentieth century. Now, nearly twenty years later, the case threatens to break wide open. Members of Boston's criminal underground are turning up dead, and the M.O. suggests IRA training. When Scott Finn learns that one of his clients, Devon Malley, was part of the heist, he's quickly drawn into the crossfire.