Casualty - Under Fire Trailer

Casualty - Under Fire - Special Red Button episode transmitted on BBC 1 on Saturday 14th April 2011.
As her General Medical Council trial approaches for allegedly attacking and injuring a patient, Holby City ED's Dr Sam Nicholls discovers that someone from her past is returning -- and they are going to give evidence in her trial. And the new evidence could potentially spell disaster for Sam.
This exclusive Red Button episode provides an insight into Sam Nicholl's troubled military past in Afghanistan.
Sam is forced to make a tough choice when she and her helicopter medical rescue team are called to a suicide bombing in a tea house.
Will Sam make the right call? And just who is the person returning to give evidence?