Holby City Hospital teed up for explosive Casualty 40th anniversary episode

The staff of Holby City Hospital are in the midst of an explosive disaster and faced with life-or-death emergencies in a first look at the Casualty 40th anniversary episodes.In a teaser trailer released by the BBC, fans were offered a first glimpse at the drama to come when the long-running medical show celebrates its landmark anniversary in September.The upcoming special episodes, which will air later this year, will comprise of a double-bill centred around beloved characters including Dr Dylan Keogh and Flynn Byron.The trailer opens with an explosion as emergency medicine consultant Byron, portrayed by Olly Rix, watches on in shock.An eerie chorus of children singing “Happy Birthday dear dad” can be heard as members of the emergency department, including clinical lead Dr Keogh (William B