Roger Lococco in effect signs his own death warrant by testifying to a Senate committee about a cabal within the U.S. intelligence community, but to back him up he needs Vinnie to testify as an O.C.B. operative — testimony that would end Vinnie’s career as an undercover agent.

After resigning, Vinnie returns to his old neighborhood to try and get some peace after his life undercover, but is distressed to find white supremists are stirring up trouble. Daryl Elias is promoted to OCB director and orders Frank to either bring Vinnie back to work, or in for debriefing. After a synagogue is trashed, Pete speaks out against the white supremists and is then murdered in a hit and run accident, making Vinnie rejoin the OCB to find his killer.

Vinnie is the fall guy in the alleged plot to disrupt the Japanese economy, prompting the Attorney General to launch a classified Senate investigation that could cost Vinnie his badge. Fearing her career is ruined, Kate attempts suicide. After hearing all the evidence, the Attorney General relieves Vinnie of his duties, stating there's enough to prosecute him for treason. Prescott Wilson arrives and places all the blame on Masters. Masters goes off the deep end and kills Strichen. Vinnie is cleared of all charges. (source: http://www.plasticcow.com/wiseguy)