Nope — Danny Reagan's son doesn't die in 'Blue Bloods'. I've watched the show enough to know the Reagan kids show up across seasons, and while the series puts family members through some tense, emotional storylines, there is no episode where Danny's son is killed. The show often uses threats, near-misses, and cases that put the family in danger to ratchet up the drama, so I can totally see how a memory of a violent storyline could blur into thinking a child of Danny's was killed. That just doesn't happen on screen. If you're trying to track down a particular heartbreaking moment, it's worth remembering that 'Blue Bloods' has a lot of intense episodes involving kids or young people — victims, witnesses, or relatives of suspects — and sometimes those beats are written in a way that sticks with you. People also sometimes mix up what happens to different characters across long-running crime shows; a tragic death in another police drama can bleed into memories of 'Blue Bloods'. If you want a deeper dive, the episode guides on Wikipedia, the 'Blue Bloods' wiki, or episode descriptions on streaming platforms are great ways to scan for any plotlines that sound like the one you're recalling. On a personal note, I actually appreciate that the Reagan family, despite all the trauma they face because of their jobs, mostly stays intact — it keeps the emotional center of the show grounded. I still get pulled in by episodes where the kids are threatened, because the writers do a strong job of making the danger feel real without resorting to killing off a family member just for shock value. That said, if you tell me which scene you think involves Danny's son dying, I can probably spot the actual episode you're remembering; there's usually a different kid or a flashback that gets misattributed, and it’s fun to play detective about these things.