"Duty of Care" is the 798th episode of Casualty and the 17th episode of the 26th series. It was preceded by "Next of Kin - Part Two" and followed by "Death and Doughnuts". The episode was directed by Reza Moradi and written by Paul Longue. It also featured the first appearance of Tom Kent. It was also a feature length episode of 80 minutes
Following the fire which wreaked havoc in Holby, the lights are turned on to reveal the brand new, updated ED. Discussing the new facilities, Jordan and Charlie decide that today will be a prep day and that they’ll only treat minor cases. But they’re soon forced to change their plans when a huge traffic accident occurs on the dual carriageway and victims start to flood into Holby City.
Matters go from bad to worse when a related traffic accident causes a gas pipe to explode and a cloud of poisonous gas engulfs the town. The ED is at full stretch despite the efforts of dashing new paediatric doctor Tom who arrives by air ambulance. As tempers fray, a patient lashes out at Dylan but Sam restrains him with a physical head lock.
Will the brand new ED and staff cope with one of their most challenging days to date?
This is the first episode of Casualty to be filmed at the BBC's Roath Lock Studios in Cardiff.
Despite the two previous episode also being filmed in the format, this episode is the first to be broadcast in high-definition on BBC One HD.