The CBS spin-off Boston Blue, starring Donnie Wahlberg as Detective Danny Reagan, has successfully navigated its premiere season by balancing the introduction of the new Silver family with strategic nods to the beloved Blue Bloods universe. Fans who have followed Danny’s emotional move from New York to Boston—spurred by his son Sean’s start on the Boston PD—will be thrilled to learn that a key figure from his past is making a significant return.
On Friday, November 21, 2025, Boston Blue will air its sixth episode, “Code of Ethics,” which will feature the most substantial return yet of Detective Maria Baez (Marisa Ramirez). Baez, who was Danny’s longtime partner at the NYPD and is now his new romantic partner, is set to assist Danny and his new Boston partner, Detective Lena Silver (Sonequa Martin-Green), on a complex case, giving fans a long-awaited reunion of the iconic detective duo.
This appearance is more than just a cameo; it marks the first time Danny and Baez will work a case together since officially becoming a couple, and it raises major questions about the longevity of their long-distance relationship and Baez’s potential future in Beantown.
🗽 The Romantic Revelation: Baez and Danny
The premiere of Boston Blue gave longtime Blue Bloods fans the answer they had been waiting for: after years of working side-by-side, Danny Reagan and Maria Baez are finally in a romantic relationship.
A New Dynamic
- Setting the Stage: Baez made a brief but crucial appearance in the Boston Blue premiere, confirming her new status with Danny. She returned again in Episode 3, where the couple shared a private moment and a kiss in an elevator, solidifying their commitment to making their new long-distance relationship work.
- The Long-Distance Struggle: Danny’s move to Boston to be near his son, Sean (Mika Amonsen), created a necessary, but frustrating, geographical barrier for the couple. This long-distance dynamic has been a key emotional undercurrent of the spin-off, allowing the writers to explore the challenges of balancing professional duties in two different major cities with a newfound personal happiness. The November 21 episode, “Code of Ethics,” will be the first time fans get to see the couple not just dealing with the logistics of their relationship, but actively working together as partners again.
🔎 The Case: Baez’s NYPD Assist
The official logline for the November 21 episode, “Code of Ethics,” confirms that Detective Baez will be traveling north to lend her expertise to the Boston Police Department (BPD).
Hunting the Serial Home Invader
The episode centers on Danny Reagan and his new BPD partner, Detective Lena Silver, hunting down a dangerous serial home invader. Given the unique challenges of inter-state criminal investigation, especially when the pattern of a perp may cross jurisdictional lines, Baez’s involvement as a seasoned NYPD Detective provides a logical and exciting plot mechanism.
- The Partnership Dynamic: Baez’s presence creates a fascinating dynamic in the BPD precinct. Fans will get to see how the two women in Danny’s current life—his new work partner, Lena Silver, and his romantic partner, Maria Baez—interact. Given their shared experience working alongside the often-bullheaded Danny, it’s highly anticipated that the two detectives will quickly find common ground, potentially leading to a powerful, three-way investigative collaboration. Baez will be seen in her full work attire for the first time in the spin-off, underscoring that she’s there on official NYPD business, not just a social visit.
A Blue Bloods Crossover Success
The return of Baez is a testament to the creators’ commitment to connecting the new series to the original’s loyal fanbase. Executive producers have already confirmed that Baez will return multiple times throughout the first season, indicating that the romantic relationship is a vital, recurring element of Danny’s new life. This is a clear signal that the Boston Blue universe intends to honor the history of Blue Bloods while building its own unique identity around the Silver family and the Boston setting.
💼 Beyond the Investigation: The Future of Baez in Boston
While “Code of Ethics” offers a professional reunion, it inevitably fuels the central fan question: Will Maria Baez eventually move to Boston and become a series regular?
The Argument for Moving
- Fan Demand: The romantic pairing of Danny and Baez was one of the most highly anticipated resolutions of Blue Bloods. Now that the relationship has been established, fans are eager for the long-distance dynamic to end, allowing the couple to fully explore their happiness.
- The Reagan Family Presence: Danny is now fully immersed in the Boston PD, living in the city where his son is also a patrol officer. His ties to New York are now professional and romantic, but no longer domestic. For the relationship to sustain itself, a permanent relocation for Baez seems like the ultimate conclusion.
- Available Opportunity: Baez is an exceptional detective. While the BPD Silver family is formidable, the introduction of a seasoned NYPD veteran with a unique skillset could be organically woven into the fabric of the Boston law enforcement world, perhaps even securing a high-ranking position.
The Argument for Long-Distance Drama
- Narrative Tension: As Marisa Ramirez herself has acknowledged, perfect happiness can often be less compelling television. The long-distance relationship provides a source of ongoing, low-level drama and conflict for Danny.
- NYPD Tie-In: Keeping Baez in New York allows Boston Blue to maintain a crucial link to the Blue Bloods universe, enabling future cameos or guest appearances from other characters, such as Jamie Reagan (Will Estes) or Eddie Janko-Reagan (Vanessa Ray), through her job at the NYPD.
🌟 The Other Storylines in “Code of Ethics”
The November 21 episode isn’t solely focused on the Danny and Baez reunion; it promises to advance the internal drama of the Silver family and Sean Reagan’s new career.
- Sean’s Budding Romance: The episode will introduce the character of Penny, played by Marvel star Xochitl Gomez (Doctor Strange in the Multiverse of Madness), as a recurring guest star. Penny is a charming woman who crashes into Sean Reagan’s life, and her presence in “Code of Ethics” will quickly lead to “unexpected complications” for the young patrol officer. This marks a significant development for Sean’s personal storyline following his recovery from injuries sustained in the premiere.
- The Silver Family’s Crisis: Meanwhile, the formidable women of the Silver family—Boston District Attorney Mae Silver (Gloria Reuben) and Boston PD Superintendent Sarah Silver (Maggie Lawson)—will be tackling a major institutional crisis. Their storyline will focus on uncovering a “troubling leak” that has the potential to “upend the justice system,” demonstrating that high-stakes professional drama is not limited to the Reagan men.
🔑 Conclusion: A Bridge Between Worlds
The return of Detective Maria Baez in the Boston Blue Episode 6, “Code of Ethics,” is a pivotal moment for the spin-off. It’s a powerful move that rewards the Blue Bloods fanbase by showcasing the continued growth of the Danny and Baez relationship, now on romantic terms and working a case together for the first time.
Scheduled for Friday, November 21, this episode delivers on the promise of the Blue Bloods universe—blending compelling police procedural drama with deep-seated family and relationship dynamics. While Baez is currently only a recurring character, her substantial presence on the case with Danny and Lena Silver is a clear indication that the door to Boston is wide open, and the eventual full-time reunion of the couple may be only a matter of time.
