Monica has an unexpected visitor, her mother Joan, who no one's seen for twenty years. Suddenly all Monica's childhood insecurities come flooding back. But Joan has a secret, she's got Alzheimer's disease and has a very important task for Monica but, she can't remember what it is. When Stan confesses to Yvonne that he's got a soft spot for her he gets a little more than he bargained for, in the stock room, up against the shelves and behind the frozen goods. Yvonne is a woman with physical needs but does she want this to go any further because, Stan certainly does. When Paddy and Mimi take a holiday, Shane and Mickey decide to throw a party. The only problem is, they've no cash to buy booze and drugs and when they enlist Liam to help them with a money making business venture, they soon find themselves outsmarted.

Jamie's ex-cellmate Mark comes to stay, but Karen doesn't trust him and the battle lines are drawn. Karen's got a fight on her hands if she's to prevent Mark from leading Jamie back into a life of crime. When Carl gets poor grades in his GCSEs, he realises everybody thinks he's a failure. So he sets out to prove them wrong and, with a little bit of help from Paddy, finds his real talent in the boxing ring. Yvonne gets a shock when she hears that her daughter Meena has arranged her own marriage. Meanwhile, Norma finds herself on a date. But is she over Monica yet?