Netflix has confirmed a new series that will reunite Millie Bobby Brown and David Harbour following their work on the streaming giant’s hit series “Stranger Things.” The untitled spy thriller, written by Jack Thorne and produced in collaboration with A24, will see the duo reprise their roles as estranged father and daughter. According to the logline. The story centers around Matt Wolfe. A disgraced FBI agent turned security expert, played by Harbour, whose estranged daughter, Rebecca, portrayed by Brown — vanishes during a mission, pulling him back into a world that has evolved beyond him.

Collaboration with Jack Thorne and A24

Jack Thorne, known for his work on “Adolescence,” “Lord of the Flies,” and the “Enola Holmes” films, which also feature Brown, is writing the series. Thorne will also serve as an executive producer, alongside Jake Bongiovi and Robert Brown from PCMA Productions, Joe Hipps and Patrick McDonald from Cut To, KC Wenson from Bravo Axolotl, and A24. The series was ordered straight to a full series by Netflix, with no official title or release date announced.

Backstory and Production Team

Millie Bobby Brown and David Harbour previously shared the screen for five seasons on “Stranger Things,” which concluded on Dec. 31, 2025. Since then, Brown has appeared in the upcoming “Enola Holmes 3,” set for release on July 1, 2026, while Harbour starred in HBO’s limited series “DTF St. Louis.” In a recent interview with Variety, Harbour teased the project, saying, “Straight up, Millie and I are working on several …,” before cutting himself off. Brown confirmed in a podcast appearance that the idea of reuniting came from Harbour.

Thematic and Plot Details

Netflix has emphasized that the new project is a standalone, original story with no ties to the “Stranger Things” universe. The series is described as a thriller-drama that explores a complex and dangerous world of international espionage. David Harbour’s character, Matt Wolfe, is a former FBI agent who now works as a security consultant, living a quiet life until his daughter, Rebecca, disappears during a high-risk operation. This prompts him to return to a world that has changed significantly, forcing him to confront both a transformed criminal underworld and his fractured relationship with his daughter.

The production team includes Jack Thorne as writer and executive producer, and the project is being developed with A24. Netflix’s Head of Scripted Series, U.S. and Canada, Jinny Howe, praised Thorne’s ability to “find the deeply human story inside a thriller” and expressed excitement about Brown and Harbour reuniting as “estranged father and daughter on opposite sides of a crisis.”