Stranger Things‘ signature father-daughter duo is back! Netflix has given a straight-to-series order to a father-daughter espionage thriller starring Stranger Things‘ Millie Bobby Brown and David Harbour from Adolescence co-creator Jack Thorne, A24 and studio-based producer Joe Hipps.

With the high-profile project featuring key auspices of two of Netflix’s biggest series ever — ranking as No.2 (Adolescence) and No.3 and No. 4 (Stranger Things 4 and 5) on the streamer’s Most Popular English Series list — it was earmarked from the get-go for Netflix which stepped up with a series order.

In addition to the Emmy-nominated Stranger Things duo of Brown and Harbour, the untitled series, loosely inspired by Paul Warner’s debut novel A Spy In the Blood, also reunites Brown and Thorne, the star and writer of Netflix’s Enola Holmes film franchise, which Brown produces. Its upcoming third installment is being released July 1.

In the series, disgraced FBI agent turned security expert Matt Wolfe (Harbour) is drawn back into the world he left behind when his estranged daughter, Rebecca (Brown) — now an FBI agent determined to follow in his footsteps — vanishes on a mission, forcing him back into a field that has evolved beyond him.

“We are delighted to bring this spy drama to life with an extraordinary group of talent we’ve been fortunate to collaborate with before,” Netflix Head of Scripted Series, US and Canada, said. “Jack Thorne’s ability to find the deeply human story inside a thriller is unmatched, and watching Millie Bobby Brown and David Harbour reunite — this time as estranged father and daughter on opposite sides of a crisis — is something audiences are going to love. A24 is the perfect partner to bring this story to our members around the world.”

Brown teased the project on the Happy Sad Confused podcast this week, giving Harbour props for re-teaming them.

“Father-daughter is where we live, but Netflix will always be our home,” she said. “The David Harbour project is sooner than expected, and it’s David’s idea, so kudos to him.”

Harbour also hinted at the collaboration in a recent interview with Variety. “You’ll see more of me and Millie. 10 years wasn’t enough,” Harbour said, referring to the time the Stranger Things cast spent together filming the five seasons. “There is a special bond there. I love her, she loves me.”

After some behind-the-scene friction on Stranger Things, which Harbour and Brown have both acknowledged without elaborating on details, the two appear to have patched things up. Over the past eight months, they have publicly supported each other, they walked the Stranger Things Season 5 premiere together and Harbour attended Brown’s 22nd birthday earlier this year.

Thorne executive produces alongside Joe Hipps and Patrick McDonald of Cut To; Brown, Jake Bongiovi and Robert Brown for PCMA; as well as Harbour and KC Wenson for Bravo Axolotl.

A homegrown Netflix talent who rose to fame with her role as Eleven on Stranger Things, Brown has been a Netflix mainstay, starring in several movies, including Damsel, The Electric State and the Enola Holmes franchise. Also coming up for Brown is romantic feature Just Picture It, which she produces and stars in.

Harbour followed the fifth and final season of Stranger Things, in which he portrayed Eleven’s adoptive father Jim Hopper, with a starring role opposite Jason Bateman and Linda Cardellini on HBO’s limited series DTF St. Louis. His upcoming movies include Avengers: Doomsday, in which he reprises his Red Guardian role, Violent Night 2 and John Rambo.

Thorne has been in high demand following the global success of the Emmy-winning Adolescence, which he co-created and executive produced with Stephen Graham. Netflix recently acquired Thorne’s Lord of the Flies limited series adaptation; he has a Claus Von Bülow limited series pending green light at Apple TV, he co-wrote Sam Mendes’ upcoming The Beatles – A Four-Film Cinematic Event and has a couple of feature projects in the works.

For Hipps’s A24-based Cut To, which was launched in late 2024, this is the third big package to land a straight-to-series order, following Discretion, starring Nicole Kidman and Elle Fanning, which went to Paramount+, and Trigger Point, headlined by Joel Edgerton, which was won by Netflix.