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Season:     14     / Episode:     7    
Blackout

A man is released from prison to help American and Chinese authorities pursue a mysterious cyber criminal. The dangerous search leads them from Chicago to Hong Kong.

When a fingernail is found underneath the diving board of a pool where a drowning occurred, Lilly and Scotty reopen the case and investigate the 1996 family gathering during which the victim died. Lilly sees the victim looking at her reflection in the water.

Sgt. Longford reconsiders his retirement but gets told that it is not that simple to undo. Detective Fitch's time with his son Bobby (Vadim Imperioli) is interrupted by the arrival of 'Big Al' Stram (Tommy Flanagan) from New York. A family is killed over what is believed to be a drug debt. Special Agent Harkins confronts Detective Fitch about his claiming to have never heard of Al Stram because she now holds the unsealed case files of his investigation in New York. When it is discovered that the father of the murdered family was a supervisor with Customs and Border Protection at the Ambassador Bridge and that he had refused to work with Stram Detective Fitch realizes it is a message to him. When Detective Washington realizes that it was Stram whom he saw at the museum talking with his partner he informs Lt. Mason. When confronted about the secrecy Detective Fitch reveals that his case against Stram in New York ended because Stram had killed his partner and his partner's family and he believes that Stram will do the same to Detective Washington and his family if he isn't stopped. Determined to not let Stram get away again Detective Fitch entrusts his son to Detective Washington's care and with Detective Majahan and Sgt. Longford goes after the Scottish mobster, staying at least one step ahead of Special Agent Harkins who only wants to get Stram in custody. The rest of the department attends the baptism of Detective Washington's son.

A power outage disrupts Lois and Hal's anniversary and reveals Malcolm's trysts with young European women.

Tommy falls off the wagon, while the crew looks for Colleen.

The gang's invited by Ness to a party way out in Bushwick. On the way, a short citywide blackout brings hidden tensions to the surface: Stacey possibly is pregnant and Tina asks Jason not to flirt with Ness as he "keeps peeing in her pool", chasing away possible friends.