Mexican Stand Off - S17.E10

DS McAllister pushes her informant and lover Jamie Ross too far when she tapes a privileged conversation between Ross and a client who admits to intimidating a witness in a court case. When Ross makes an official complaint against her, she turns to DC Riley for help and threatens to expose his cover-up of his brother's involvement with the French car gang unless he backs her up and says that he was present at all her meetings with Ross.