Luke is horrified to discover that not only is his girlfriend Gemma still living with her close friend Roger, but they're thinking of getting a dog together. Gemma's brother (and Luke's infuriating cellmate) Jason for once has a good solution to the problem - why doesn't Luke propose? Meanwhile, Prison Officer Creg is suspicious that one of the inmates is running a gambling racket right under his nose. Unfortunately, his usual source of information - Isaac - has gone cold turkey on snitching and Creg just can't seem to break him. Luke's proposal plan hits a snag when Jason reveals that he'll have to get permission from his parents. This wouldn't have been such a problem had Jason not "accidentally" told his Dad that it was entirely Luke's fault that they're both locked up. And if that wasn't pressure enough, other prisoners have started putting bets on whether Gemma will say yes... including the terrifying Marcel.