As well as his job, Tom is also in danger of losing his snooty fiancee Lucy. To add insult to injury, he also has to fend off the advances of a stalker ex-patient, while the lawyer who Tom hopes will clear his name turns out to be a complete liability. The fast-paced action is centred around the 999 callouts Julie and Tom respond to, uncovering in the process the underbelly of Leeds. Tom and Julie are a chalk and cheese pairing, but nonetheless an unlikely alliance is gradually struck over the course of their first night together - with Tom's advanced medical knowledge proving invaluable in reviving a man who has a heart attack after blowing up 86 balloons, and Julie is able to offer advice on Tom's relationship difficulties - suggesting that some of her merchandise might help to spice things up between him and Lucy.