Kate finds herself on a nurse practitioner course and before long she soon has ideas on how to improve the ward which irritates all the others. Beth plots revenge after thinking Justin tricked her into bed. Elsewhere, Jamie and Lia's relationship is stronger than ever. Finally, after a big night out with an old crush & former art teacher, Anji turns up late for work. How will Kate, the new nurse practitioner, handle this situation?
After her spat with Kate Anji quits her job and decides to travel around India. With Anji gone Beth is concerned that Lia and Kate only befriended her because Anji was the link and is put out when they go drinking without her,leading to a row which causes her to go and work in a private hospital. Callum becomes jealous of Justyn's popularity on the ward and gets him to school him in the ways of acting more camply.
Peter Compton,an ex-Army doctor arrives to take Jamie's place and has a baptism of fire when a whole lot of guests at a wedding reception are admitted with food poisoning. He rows with Kate over McManus's treatment of the nurses but she accepts when he asks her on a date. Lia however is upset because Jamie is going to work in Australia and she does not think it fair to Emma to go with him. Callum is making money from being a guinea pig for a clinical drug trial,prompting Beth and Justyn to follow suit but he knows something they do not,which is why they suffer adverse...
Beth is reunited with Kate and Lia whilst Peter uses his army skills to give self-defence classes to the rest of the staff after they are subject to assaults from violent patients. He continues dating Kate though their lack of sex draws comments from the others. it is Kate's thirtieth birthday and Valerie,her mother,turns up for her surprise party. However Valerie is out to hog the limelight,getting drunk with the nurses and showing off her breast implants and Lia and Beth come to see why there is little affection between mother and daughter.
Beth decides to teach the obnoxious and jealous Steph a lesson with a practical joke that involves super gluing herself to Steph's fiancé Patrick. Anji new-found spirituality comes to an abrupt end when she realises the reality of the situation with her unborn baby. She makes plans for her baby including finding the potential father. Kate and Peter exchange presents but she is upset when she thinks that he may have exchanged his and a scornful Lia and Emma attend a craft evenings for single-parents and their children.
Anji plans to go on a camping trip with her friend Rob but another loony mum-to-be puts her off the idea, so Beth goes instead. Beth sets her sights on a plastic surgeon but is disappointed by the outcome of their date. Kate thinks that Peter is going to 'pop the question' but his reaction to her excitement disappoints her. Later, he turns things around and surprises her by proposing to her at a garden centre.
Kate and Peter are officially engaged but whilst she is planning for a lavish wedding he fails to see the need for such fuss. Lia begins dating the much younger Jake,which,in turn,leads to her behaving like a teenager though this does have its advantages when she is asked to give a lecture on sex education at Emma's school. Beth agrees to go on a second date with plumber Rob whilst Anji is in a dilemma when both Beth and Callum offer to be her birthing partner and she does not want to disappoint either.
To her surprise Beth finds Rob more satisfying than the wealthy husband she thought she always craved whilst Anji,having given birth to baby Mia,is at long last paired off with Callum despite their recent difficult patch. Emma suggests to Lia that they might go to Australia to be with Jamie but there is no need when the registrar returns,declaring his feelings for Lia and moving in with her and Emma. Kate on the other hand is beginning to find Peter is not the man she thought as he becomes more and more controlling and she eventually leaves him at the altar.