Blue Bloods - Re-Do

A very topical storyline, where a series of dangerous criminals are released from prison due to a technicality because a lab technician made mistakes with the DNA.  These mistakes were brought on due to lack of funding.  One of these killers is a particularly nasty man who would rape women, cut them and then burn them to death while tied to a bed.  There was one survivor and she is the number one target for a new attack.  But is the killer going to go after her or the people who put him in jail, namely Erin Reagan-Boyle, the Police Commissioner's daughter.  Meanwhile the Police Commissioner has to involve himself in politics and do some detective work to find our why there was insufficient funds for the medical examiner's laboratory.
This is a nail-biting episode that has one of the best endings!  This is such a brilliant show.  More people need to be watching this.