A stray dog is roaming the corridors of the DG and Dolly gets upset as he reminds her of a foster family's pet. Seeing Dolly sad, Tracy tries to help by offering to foster ‘Fang' and they pursue him until he's safely locked up in Tracy's bedroom.

Justine's Dad is getting married to girlfriend Carrie and Justine is to be a bridesmaid. But her Dad's unfortunate choice of dress leaves her so miserable that Tracy and the girls try to help. Several customisations later, the dress is in shreds and Adele manages to swoop to the rescue. Adele's work is later ruined at the DG's "better-than-posh- restaurant party" – the mood turns sour due to some appalling table manners from Bouncer, Amber and Dolly, and Justine is made to bear the brunt of it when Amber tosses a pizza at her dress.

Justine is desperate for her Dad and Carrie to ask her home with them for good. However, when they cancel taking her out for the day, Justine begins to doubt that it'll ever happen. Justine fears the worst when she hears that Carrie is on her way round to speak to her. When Carrie arrives and announces that she's pregnant, Justine is certain that her dream will never come true.

Tracy is determined to win Jake & his Dad Tom over. She realises that if she's going to impress them, then she needs to brush up on her skills at being around little brothers & dads. Taking advice from Justine, Tracy treats Tom as though he's a dog – throwing a ball for him to catch and rewarding him with treats.

There's a BBQ party to celebrate Justine leaving. Jackie goes to collect Grandpa to join the party, and is devastated to discover that he is in a wheelchair. Marco dresses up as a magician for the party but can't seem to do anything magic, until he pinches Duke's flip-flops while he is asleep and sends them up high into the sky tied to helium balloons with Duke waking up in time to see what is happening and then tries to catch them back down (but fails to do so) while everyone else is looking on with laughter. Jackie is determined that her Grandpa will still be the fastest Grandpa in the land and soon gets him wheeling at top speed. As Justine heads off to begin her new life, Tracy has to face the fact that she's the last kid from the old Dumping Ground set to be left behind.