Watch Boston Blue Season 1 Episode 3 Online

“History” — Watch "Boston Blue" Season 1 Episode 3 online in HD for free. Check streaming providers, cast, and episode details.
Oct 31, 2025 Season 1 Episode 3 44 min TV-14
2.4 ★ ★ ★ ★ ★
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Season 1 Episode 3 — Aired on Oct 31, 2025 • runs about 44 minutes.

Directed by Alex Zakrzewski.

Written by Rebecca Perry Cutter.

Notable cast/guest names in this episode include Donnie Wahlberg, Sonequa Martin-Green, Ernie Hudson, Maggie Lawson.

This page includes 1 official still(s) (when available) plus legal availability links.

Looking for “watch Boston Blue Season 1 Episode 3 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

A body found on the Boston wharf pulls Lena and Danny into a tense drug investigation alongside Lena's former partner, Detective Brian Rodgers, sparking personal and professional friction. Jonah and Sean chase down a missing man tied to a scavenger hunt, while Sarah and Mae navigate emotional challenges at home and in court.

Stills

Still from Boston Blue - Season 1 Episode 3

Cast

Donnie Wahlberg
as Det. Danny Reagan
Sonequa Martin-Green
as Det. Lena Silver
Ernie Hudson
as Rev. Edwin Peters
Maggie Lawson
as Supt. Sarah Silver
Gloria Reuben
as DA Mae Silver
Marcus Scribner
as Ofc. Jonah Silver
Mika Amonsen
as Ofc. Sean Reagan

Episodes – Season 1

Trailer / clip

There�s no trailer available for this series right now.