Caroline seems to be getting closer to making Mac remember their relationship, but a spanner is thrown in the works when Angela's replacement turns out to be Mac's old girlfriend Holly. Joanna has probles with her eyes, Sue attends an art class with Martin as a nude model, and Guy teaches Guyball to some kids.
Caroline and Mac's budding relationship experiences yet another hitch, this time in the shape of Mac's ex-girlfriend Holly who takes over the vacancy left by Angela. Will their relationship ever be able to develop fully? Despite their problems, there is still romance in the air at the hospital. Unfortunately for Mac and Caroline, it comes from another, more unexpected, source: Harriet and Lyndon, who arrange to go out on a date much to Joanna's horror.
As well as Holly's unpleasant appearance, Mac gets even more grief, this time from Alan Statham. Alan is given new car parking space miles away from the hospital entrance, which he is less than happy with, especially when he discovers Mac has been given a space right next to the door. Alan tries his best to convince Mac to swap, Mac however has other ideas, such as using his space for a beach party.
Whilst all this is happening, Sue "lets her artistic juices flow" and enrols in an art class, where she is extremely surprised to learn that the life model is in fact Martin. However she is not disappointed with what she sees and her portrait of him is put up in her office for all to see. Another person who gets all artistic is Guy, who begins his community service by painting over graffiti and teaching Guyball to school kids. He also starts looking for a flat without much success. However, Caroline takes pity on him and lets him live as a lodger with her. Will she regret it?