999: Critical Condition Season 2 Episode release dates & where to watch

1. Every second counts, from the moment they come in

After a one-punch attack, Daniel has a potentially devastating bleed on the brain. A motorbike rider, a factory worker and two men with heart problems also arrive at Royal Stoke University Hospital.

2. For every rule there are exceptions

A woman suffers a ruptured brain aneurism, leaving Dr Nayak minutes to stop the bleeding. In resus, a patient's heart stops several times while Dr Mandava battles to save his life. A 17-year-old girl is critically injured in a car crash.

3. There's always an element of uncertainty

Ian has suffered a cardiac arrest. Another man is bleeding so heavily he risks losing his entire circulatory system. Ken has fallen from a roof onto a skip. Dr Nayak helps Michael, who has suffered a severe stroke.

4. When you're that close to death, every second counts

38-year-old Lesley is rushed in after her heart stops while driving. Abigail is treated for a neck injury following a fall while riding. 28-year-old Laura is brought in having a severe asthma attack. A man has shot himself in the foot.

5. It's a whole world of unknown...

Dr Pickering tends to Will who is rushed in after being stabbed multiple times. A 38-year-old mother, has had a stroke, and Dr Nayak must attempt to remove the clot in her brain.

6. Totally Out of the Blue

The trauma team treat a patient with severe bleeding on the brain and needs an immediate operation. A motorist suffers a cardiac arrest behind the wheel and a van driver is airlifted to hospital after a major traffic collision.

7. On a Knife Edge

Tom has fallen 30 feet and is bleeding internally. Helen has suffered a life-threatening bleed on the brain. Old Age Pensioner Betty is fighting for her life after being rushed in with a ruptured spleen

8. It Really Makes You Stop and Think