Gabrielle Flanagan is admitted onto Ward 17 to donate bone marrow for a 12-year-old girl with leukaemia. On hearing her name, Von and Steph both wonder if it is "the Gabrielle Flanagan" — a woman whose baby daughter was stolen from her 10 years ago. Connor's curiosity is aroused. He is dying to ask Gabrielle — who is his patient — if she's the one. He does not have to wonder for long as Gabrielle, being highly strung and paranoid after so much time in the media spotlight, informs him that it is indeed her. Although they have got off to a bad start, Connor's sympathy grows as Gabrielle tells him about the never-ending quest to find her daughter, whom she believes may still be alive. Gabrielle shows Connor an image projection of what her daughter would look like now at age 12. Connor thinks it is uncanny that the picture looks very similar to the 12-year-old patient Alex, who is also in the Ward, to receive Gabrielle's bone marrow.

Jared tells Connor that Alex is adopted and they start to wonder if she could be Gabrielle's daughter — right age, exact bone marrow match, the likeness in the image projection picture. Gabrielle encounters Alex in the hospital grounds and is amazed at the resemblance to what her daughter should look like. She pesters Connor for details and when he can't tell her anything she manages to sneak a look at Alex's file. When she learns it is Alex who will be receiving her bone marrow she is convinced she is about to be reunited with her long lost baby girl.

Meanwhile, Alex Richards is devastated to learn from her parents she is adopted. She cannot understand why her parents kept it a secret from her — obviously they must be ashamed of her. Terri manages to convince the girl to listen to her parents' explanation of why they chose to lie to her.

Kevin Simms is admitted to the Ward suffering advanced emphysema. He is in a bad way and Mitch has to tell him he only has a short while to live. But Kevin is desperate to make it one extra week. He has put in for a marriage certificate so he can marry Liz, the woman he loves. Making her his wife is the only thing that will allow Kev to rest in peace — he wants to will his house to her but he is sure that his nasty sister is going to contest it. However, if Liz is his wife, his sister Maisie won't have a leg to stand on. Tony, who is feeling very depressed about his Hep C, discovers that in special circumstances a marriage licence can be rushed through. Tony seems to get a new lease on life as he sets about organising a perfect wedding for Kev and Liz. The only question is… will Kev stay alive long enough to make it to the altar?

Bron and Ben attend what has been described to them as a domestic dispute. A frantic man, Raymond, meets the ambulance and tells them he's stabbed his best mate Trevor. He thinks he has killed him! Bron and Ben race in side and are more than surprised by what they find.

All Saints is thrown into emergency status when an explosion creates chaos and carnage. The disaster becomes personal when the staff realise that Von is missing. Steph has to put aside her fears about her own pregnancy while Ben and Bron fight to save the life of a pregnant woman and her unborn child.

Alex Richards is free from the rubble. She is unconscious, suffering head injuries and in urgent need of surgery. Luke and John Madsen perform a craniotomy to remove a haematoma, and although Alex survives the operation she suffers a respiratory arrest on the Ward. Steph manages to stabilise her but she goes into a coma. Her prognosis is not good and her mother, Di, is distraught.

Luke and Madsen are operating on Rob when the word comes through he is the one responsible for setting the bombs. Luke has just heard of Alex's decline and is so angry he does not care whether Rob lives or dies. But he learns a lesson in professionalism from Madsen.

Unknown to all of them, Rob left a ticking bomb on the Ward when he went into surgery. He is prepared to lose his life for the sake of his vendetta.

Jared is nursing Mrs Price who is frantic about her two missing children, Caitlin and Rowen. When news comes through the kids have been located, Jared suggest Bosco might go over to the site to entertain and distract the kids while the rescue workers try to free them. Bosco laughs in Jared's face and says he has no intention of putting his life in danger and says he is going home.

Over at the Medical Centre, Bron and Ben are just at about their wit's end trying to calm Rowen and Caitlin, when out of nowhere (it seems) a clown appears. Bosco calms the kids and he finally has an audience who appreciates his jokes.

In the middle of the chaos, Mitch proposes to Rose. It never occurred to him she might want time to consider his proposal. In fact, there are a few delicate matters concerning his past that she wants to discuss before she will give him a genuine answer.

Tension levels on the Ward rise even higher when it is learnt Rob is being sent back to Ward 17 after surgery. When Alex's distraught mother Di discovers the man responsible for the bomb is on the Ward after she loses control. She barges into Robs room and starts to attack him. AS far as she is concerned, it is totally unfair for him to live through when it looks like her daughter is dying. Terri has to throw herself in front of Rob to defend him. It is then he tells Terri there is one more bomb...