Casualty: Season 21, Episode 13

21 - 13: The Edge of Fear

Selena is due to appear on television to speak to the Holby MP. Nathan tells her to ask the MP why the current Emergency Department should remain open when they could have a bigger, better ED at St James's. However, his plan is foiled when Selena is quarantined when a patient called Martin - played by guest star Joe McGann - is admitted to the hospital with radiation burns and Harry takes her place on the show