"Boiling Point" is the 104th episode of Casualty and the 24th and final episode of the 7th series. It was preceded by "No Cause for Concern" and followed by "Cat in Hell". The episode was directed by Michael Owen Morris and written by Peter Bowker. It is widely regarded as a landmark episode of the earlier series.
Duffy and Andrew are at 'Children's World' restaurant, with their son – who's fourth birthday it is. Charlie receives an invitation to Duffy's wedding, scheduled for the following day. Sandra is also planning her second honeymoon with husband, David. Charlie is feeling better after his nervous breakdown, and Maxine asks Charlie for a reference – she is applying to be a Project 2000 Nurse.
It's Rob's last day – as a surprise, the staff send him into CRASH believing there is a patient with a snake bite – the sheets are uncovered to reveal an inflatable doll with Rob's head on it. They give him a bottle of wine and a record token. Rob is shocked to find Simon has also bought him a present – a personalised diary.
On a housing estate, an old man, Ray, is brutally beaten at his son, Gordon's (and his wife Elspeth) home. Gordon gets his neighbours, part of a vigilante group, to tour the estate with baseball bats. They meet the youths, and a big fight erupts. Gordon attacks one of the youths, Steve, who injures his back. The father, Errol, of one of the other youths, John, is stabbed by the gang leader, Terry. Josh and Jane are one of the crews to arrive, they are not happy with the scene and rush to take victims Errol and Gordon away. The youths follow the ambulance as it arrives at Holby, they take Steve in and cause a disturbance. Terry even threatens Ray again – Ray later dies of a suspected heart attack.
They then break into the hospital basements and start a fire in the lifts. Maxine sounds the alarm, and waiting patients are pushed out, as an ambulance is petrol bombed by the jubilant youths. It blasts reception and CRASH, where Mike is attempting surgery on Errol, who has a collapsed lung. The staff stagger into the grounds – but Rob lingers trying to bring Ray's dead body out with him. A second explosion brings the roof down on top of him. Outside Mike fails to save Errol's life, John feels awful. Fireman fight the blaze and bring Rob out – Mike suspects Rob may survive, but his legs are seriously crushed. Duffy is upset and feels it is the end for the Holby A&E department – Charlie tries to comfort her.