Blue Lights Season 4 Sets U.S. Premiere on BritBox for November 12
BritBox confirmed the Season 4 launch date for American viewers, two months after the season began airing on BBC One in the U.K.
Blue Lights Season 4 will premiere in the U.S. on BritBox on November 12, 2026, the streamer confirmed. The announcement was reported by collider.com.
The season has already begun its run in the U.K., where it arrived in September 2026. It is currently on its fifth episode there, meaning American viewers will be picking up the story roughly two months after British audiences.
Blue Lights is co-created and written by Declan Lawn and Adam Patterson. The series first launched on BBC One on March 27, 2023, and has returned annually since: Season 2 premiered on April 15, 2024, and Season 3 on September 29, 2025.
BritBox has not announced whether the full fourth season will arrive at once or roll out weekly for U.S. subscribers.
Quick answers
When does Blue Lights Season 4 come to the U.S.?
Season 4 premieres in the U.S. on BritBox on November 12, 2026.
Where can I watch Blue Lights in the U.S.?
New seasons of Blue Lights stream in the U.S. on BritBox; the series airs in the U.K. on BBC One.
Who created Blue Lights?
The series is co-created and written by Declan Lawn and Adam Patterson.