From the writer of Line of Duty comes the brand new Sky (UK network) drama titled Critical starring Lennie James (who also starred in Line of Duty, during its first season), Claire Skinner and Kimberley Nixon.

Critical is described as one story, in one place, in one hour – a real-time medical and emotional roller-coaster ride in which every second counts during the most life-threatening hour of a patient’s treatment.

Lennie James (who Stateside audiences may most recognize from The Walking Dead) leads an ensemble cast, playing trauma consultant Glen Boyle in what will be a 13-part series set in a state-of-the-art major trauma center, which treats only the most gravely ill or seriously injured. Each episode will feature a new and distinctive case. Whether that patient lives or dies is determined by decisions and procedures, but can the diverse team of medical professionals pull together and rise to each challenge?

Created by Jed Mercurio, the real-time nature of the drama will takes the sense of realism to genre-defining levels, transporting the viewer from the airy atriums of a new hospital to the inner cavities of the human body. It sounds like 24, but as a medical drama.

Lennie James said: “The chance to work with Jed again and to come home to be part of such an exciting and ballsy project was too good an opportunity to turn down.”

Other members of the cast include: Neve McIntosh (Doctor Who), Prasanna Puwanarajah (The Half Light), John MacMillan (Silk), Ellen Thomas (Rev), Mali Harries (The Indian Doctor), Paul Bazely (Casualty), Danny Kirrane (Trollied) Peter Sullivan (The Hour), Emma Fryer (Chickens, Phone Shop), Orion Lee (Skyfall) and Juliet Oldfield (Top Boy).

Critical is expected on Sky in 2015.

Watch a short teaser below: