A boating accident in a remote river location has left four people injured and stranded without medical help. Mike and Steve are sent via chopper to attend to the casualties.
Treating a bride who's walked into the ED on her wedding day, Adam becomes aware she's lying to her fiancé about her health. Bart does his best not to let the couple's failing relationship affect him.
Bart and Amy have their hands full with a larrikin who has managed to trap his arm in an old mattress base. But Bart finds himself struggling with what should be a simple procedure as well as Amy's amusement at his discomfiture.
Steve is confronted with demons from his past when he discovers that the MRU call out is to Gabrielle's family property - her brother Ben's arm mangled by some farm machinery.
A cave-in brings the MRU to rescue a disoriented man from the fall. Although a difficult extrication, the rescue appears to be successful until the man reveals there is a child still inside the cave before he loses consciousness.
Frank has taken a highly unusual morning off work to indulge in a concert given by a musical hero of his, cellist Annalise Lang. Annalise's intimate concert is cut short when she has a seizure.
When Claire refuses to treat a patient, she's forced to reveal to Gabrielle that he is her ex-partner and the very reason that she left her previous life in Western Australia.
Claire's past continues to menace her when her abusive ex, Ian, returns to confront her. The argument results in Ian collapsing and Claire is forced to get him the medical help he needs. The man she fears is a patient in her ED.
Adam and Frank come head to head over Frank's treatment of a violent Ice addict. When Frank attempts to justify his position he's given a surprising insight into Adam's past.
Bart is being punished by Frank for his perceived attitude towards Amy, and has been given a boring administrative task, something which Frank assumes will take the rest of the week.
The MRU Unit is called to a dirt bike accident in the bush. Ryan, the biker, is badly hurt. With Ryan's condition deteriorating and the chopper unavailable due to high winds, Mike knows he will die before an ambulance can reach him.
A devastating bus crash impacts heavily on the MRU team. Adam's past affects his treatment of a mentally ill patient who arrives in the ED claiming to have been poisoned.
A life-threatening rescue in a grain silo rescue pushes the MRU to the limit. Steve is fully aware of the inherent dangers but Jo is her usual invincible self, confident she can handle anything.
A journalist and her injured photographer who are stranded in remote bushland. Mike is winched down to the couple but before Jo can follow they get a call from Frank - they need to get the chopper out of the sky immediately.
Adam and Amy treat Cameron, a young man with a nasty ulcer on his leg. But Cameron is more concerned with his failure to declare his love to the girl of his dreams than his pus-filled leg.
When a patient's life is destroyed by alcohol, Gabrielle goes to Steve and tells him Claire needs to know the truth about his past alcohol problems. After much inner turmoil Steve finally tells Claire, with devastating results.
On his first day back after his stabbing, Adam and Von are forced to put aside their awkwardness to help a 17-year-old who is discovered to be pregnant and the identity of the father both shocks the team and complicates the situation.
Frank is in danger of losing his perspective on Katerina as she deals with a punch-drunk patient who is at risk of losing his son and his life due to a dark family secret.
The MRU are called to a remote bush location to tend to an environmental protester suffering possible cardiac distress and stuck up on a makeshift platform at the top of a tall tree.
A new intern arrives but Frank refuses to acknowledge him. After dealing with a woman in a critical condition, he proves he's got what it takes and restores Frank's faith in the intern program. The person Elliott fails to impress is Bart.
Jo returns to the brothel to search for a prized necklace. Before she can leave, she is set upon by Albert, the owner of the brothel. He knocks her unconscious, and it comes down to Steve and Adam to try and save her.
Lorraine has gone virtually blind, apparently overnight. Adam eventually diagnoses a potentially fatal condition as Gabrielle finds that Lorraine's situation resonates with her own unresolved grief.
Bart, Gabrielle and Elliott have their hands full. A spoilt patient has presented with severe stomach pains after undergoing gastric banding overseas, and in her desperate attempt to lose weight, has developed necrosis of the stomach.
The MRU is called out to an explosion at a plastics factory where multiple casualties are expected. The boss, Tim, has dragged out worker, Brian, who has extensive lung damage.
A woman presents having suffered a miscarriage. A history of SIDS with two previous babies throws a raft of distressing possibilities at Von and Charlotte.
With Mike out of action, Steve's leadership abilities are put to the test while rescuing two brothers trapped in a lift. A fathers decision with regard to his daughter leaves Charlotte feeling hamstrung.
A dying father's desire to make amends with his son deeply affects both Elliott and Steve. Gabrielle is led to question whether she's in over her head.