Chesney and Katy join Izzy and Gary for their first appointment at the fertility clinic, but the counsellor points out that the role of a surrogate may be too much to handle for someone who has only turned 18 today. Tina tries to make amends with Kirsty by showing up at No 9 bearing gifts for the baby, while Deirdre is shocked to learn Tracy and Ryan are a couple, and an argument breaks out at Katy's birthday party. Summat about Gary telling Chesney that his girlfriend shouldn't be drinking at her 18th if she's trying to have his baby. Yep, that'd be enough to send anyone over the edge.