“Blue Bloods” season 4, episode 20: “Custody Battle” airs tonight on CBS.
In this episode, when Erin is assigned to investigate a case in which an on-duty police officer is accused of killing a suspect already in custody, Frank urges her to stick to the facts to avoid a publicity scandal for the NYPD. Meanwhile, Jamie urges Eddie to forgive her father for his past mistakes.
Danny, played by Donnie Wahlberg, is a lead detective who holds a detective first grade ranking with the NYPD, but his hot head sometimes leads him to do things his way, and not by the book. Danny is also a Marine veteran having served time in the Iraq War.
“Erin (Bridget Moynahan) is an assistant district attorney in Manhattan who prosecutes many of the criminals Danny busts. Jamie (Will Estes), Frank’s youngest child, is a recent graduate of Harvard Law School and is a fresh officer on the police force, having recently gone through commencement from the police academy.”
“Blue Bloods” season 4, episode 20 airs April 25 at 10 p.m. EDT on CBS. Spoiler video below:
