Matthew Consalvo

When New York City experiences a major blackout, cops scramble to contain the resulting chaos, and Frank uncovers some unpleasant truths about his department in the aftermath. Also, Jamie and Eddie question the line between work and their relationship, and Danny and Baez race to question the subject of a murder investigation before she gets tipped off by her ex-boyfriend.

Danny and Baez investigate the murder of a single mother whose ex-husband has a history of violence. Also, Frank deals with the fallout when Mayor Dutton (Lorraine Bracco) eliminates solitary confinement in prisons, and Jamie's efforts to save a young woman who overdosed on drugs has unexpected consequences.

After someone breaks into Luis Delgado's (Lou Diamond Phillips) home and kills his wife, Luis and Danny team up to take down the vicious murderer who may also be responsible for Linda's death. Also, Frank finally meets Eddie’s mother, Lena (Christine Ebersole), and Jamie and Erin are at odds after Jamie seeks her help charging a man who confessed to him while under the influence.

DNA evidence in a murder case leads Danny and Baez to identical twins with identical alibis. Also, Frank learns Nicky is interviewing for a job at the Justice Coalition, which he rarely sees eye-to-eye with, and Jamie visits Eddie's father, Armin (William Sadler), in prison.

Danny and Baez investigate a series of violent robberies targeting luxury timepieces, and Erin is conflicted about criminally charging a potentially innocent man.