Is 999: The Critical List coming back?

The show is currently between seasons. The most recent episode aired on May 5, 2025, and no return date has been confirmed.

999: The Critical List was a medical documentary series that aired on Channel 4, premiering on April 21, 2025. The series followed the staff at the Royal Blackburn Hospital as they managed urgent life or death cases, focusing on the operations in Theatre 6, the hospital’s only emergency operating room. It offered viewers an inside look at the decisions and procedures involved in handling critical patients in real time.

The episodes had a runtime of 60 minutes each.