Although “The Thin Blue Line” ends with a typical Reagan family dinner with everyone present, the episode’s stand-out scene is easily Danny and Linda Reagan’s home destroyed in a massive blaze. It’s visually a dark scene only lit up by the raging fire and the lights and sirens of numerous first responders. The Reagans can only hopelessly watch as surrounding firefighters do their best to combat the blaze. As Amy Carlson once shared with Deadline, that scene was the last one she shot for “Blue Bloods” before leaving the series. In addition, Carlson also noted in the interview that the scene reunited her with real firefighters she worked with during her time on “Third Watch.”
“So it was strange,” Carlson told Deadline. “It was raining, and these firefighters were there, and a lot of the firefighters, strangely enough, were actual background actor firefighters, real firefighters whom I’d worked with on ‘Third Watch,’ so it was a bit of a reunion happening at the same time.”
For those that may not remember, “Third Watch” was an NBC procedural drama focused on police officers, firefighters, and paramedics that premiered in 1999 and lasted until 2005. Think of it as like the “One Chicago Universe,” except formatted in one show and set in New York instead of Chicago. Carlson portrayed firefighter and paramedic Alexandra “Alex” Taylor on “Third Watch,” which help explains just how special that coincidental reunion must have been for her on “Blue Bloods.”