S05E01: 'Opening Night'

Ward 17 is business as usual as one of the nurses, Bron, heads off to help her friend Lyle through the "opening night" nerves his play premiere has given rise to. But the best laid plans go horribly wrong when an earth tremor buckles the tracks and the train they are travelling on crashes in a tunnel at high speed.

Trapped in the damaged train carriage with a group of schoolchildren, Bron tries to treat the wounded while attempts are made to free them and the other injured people from the wreckage.

Meanwhile, Mitch cuts his leave short to come in and attend to the victims and Terri is thrown into confusion at his unannounced return.

Ben and Scott attend the accident and Scott is thrown by the extent of the carnage. When he learns that a woman sandwiched between two carriages has no chance of survival, Scott elects to go against one of the rules of the job.

Elsewhere, trauma team surgeon Luke crushes his hand in an accident at the train crash site. As he’s rushed to hospital he’s forced to face the fact that he might never be able to operate again.