Michael's attempt to nail mob boss Frankie Malatesta is jeopardized by the untimely death of his right-wing man and by a vengeful restaurateur, who seeks retribution for the murder of his nephew.

Lindsay and Jenny run into resistance from witnesses when they try to prosecute a racially charged mob killing case; Michael's investigation into Vinnie DeMaio uncover some disturbing news regarding the possibility of a prosecutor on the mob's payroll.

The assistant U.S. attorney investigates Julie's connection to the Malatesta crime family and allegations that she may have thrown a case for the mob family. Meanwhile, Denn's case is jeopardized by claims of witness tampering.