Michael Hayes is a tough but sensitive ex-cop who goes to work in the U.S. Attorney's office in New York City. When his boss is seriously injured in a bombing, Hayes becomes Acting U.S. Attorney, and butts heads with a number of enemies, both inside and outside the law. He also cares for his nephew Daniel and his brother's wife Caitlin, while waiting for his brother Danny to settle into society following a jail stint.
Hayes jeopardizes a case to rail a mobster when he realizes that the mob informant is responsible for the murder of a woman that Hayes investigated while he was still a cop.
Hayes investigates a connection between a murder victim and a politically connected attorney, and discovers that his closest friend has been implicated in the kickback scheme.
Michael investigates police corruption on the NYPD, which worries the district attorney and alarms Eddie, whose friend may be indicted. Meanwhile, Danny tries to reconcile with Caitlin, who is mourning Rebecca's death.
Michael investigates claims that a well connected HMO refused to treat a young leukemia patient because of the costs and finds that some of the employees were paid to keep their mouths shut.
A British art gallery in New York is rolled by suspected Irish terrorists and Michael tries to get his hands on the deathbed confession of a suspected to his priest, before the British are able to extradite the others involved. Meanwhile, Michael prepares his nephew for his first communion.
Michael is asked to switch sides and defend the FBI when they are sued by a kidnapping suspect for violating his civil rights. While preparing for the case, he uncovers damaging evidence that may incriminate both sides.
Michael tries to prosecute a radio talk-show host, whose right-wing views may have spurned a crazed militia man into killing a government official. Meanwhile, Danny's future remains on shaky ground.
The murder of a Russian immigrant leads Michael to the Russian mob and its possible involvement in a multi-million dollar gasoline tax scam. Meanwhile, Danny is approached by loan sharks.
Michael tries to convict a Chinese mobster of running an Asian prostitution ring, but complications arise when one of the enslaved girls is killed, and another risks deportation if she agrees to testify against her boss.
Michael's sting operation is jeopardized by the volatile actions of his government informant. Meanwhile, Danny takes part in a fun robbery to appease a loan shark.
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.
When a suspected serial mail bomber is put behind bars after the death of a New York public relations executive, Michael's investigations uncovers a possible government cover-up, involving the FBI, the CIA, and the attorney General.
Michael's best leads in the suspicious death of a suspected serial mail-bomber appear to be a mobster and a well-known lawyer, who could be linked to a conspiracy that is fixing elections results.
Michael's attempts to reopen the murder acquittal of a police officer may be thwarted by the attorney General's office, despite his solid evidence and a teenage witness who could blow the officer's alibi out of the water.
Michael's prosecution attempts against a diplomat are hindered by a State Department who will do anything to protect his immunity, but the situation becomes easier to understand after Michael uncovers some confidential information.
Michael's former boss, a U.S. attorney, is suspected of taking bribes form the powerful businessman whom Michael is prosecuted; Eddie learns that the man who killed his first wife is out on parole.
When an ATF agent is killed during a raid on a militia group, Michael tries to determine which party started the deadly conformation; a hostage situation develops when Michael gets on the bad side of Andrea Jordan, a former confidential informant.
The car-bombing of a "family values" congressman on the campaign trail leads investigators to discover he was unfaithful to his wife.
Michael jeopardizes his job when he and the team search for the truth about Danny and stumble across a possible conspiracy.
A federally-indicted businessman with knowledge of government bribes seeks a plea deal.
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