BBC Two's Hospital documentary returns to TV this month with a dramatic look at the Westminster attack in London.
The first series, filmed at hospitals across Imperial College Healthcare Trust London at the end of 2016, averaged 2.5 million viewers per episode.
It brought stories of national importance to the front of the news agenda, including the debate around health tourism and the chronic shortage of beds, not only at Imperial but also at hospitals across the UK.
A second series was commissioned shortly after and BBC cameras were filming when a terrorist attack struck London at Westminster in March of this year.
A trailer unveiled by the BBC previews the scenes to come as doctors treat the injured and fight to save lives, including that of the attacker.
The new four part, second series of BBC Two's Hospital will begin at 9PM on Tuesday, June 20.
The hospital’s Site Director, Lesley Powls, says: “We are a hospital in the middle of London, we are a Major Trauma Centre, we accept that the chances of there being a terrorist incident are higher for us to have to deal with than certain other hospitals.”
In A&E, specialist trauma teams are assembled, ready to receive the casualties as they start to arrive. Victims include students from a French school trip, 18 year-old Yann and 16 year-old Victor, and British victim Stephen - who needs immediate surgery to save his leg - who is with his wife Cara.
French student, Yann, says: “There was a moment in the ambulance where I felt like I was going, I just wanted to sleep. I didn’t know if I was going to die.”
The BBC has already announced a third series, which will look at other areas within the NHS, including maternity and mental health care provision.