Frank is desperate to keep the fact that he is still married to Monica from his "new wife" Sheila. But Monica continies to sexually pursue him. Knowing she has competition for Frank, Sheila teams up with Debbie to reunite Monica and her lesbian lover, Norma. Meanwhile, Jamie Maguire is released from prison after serving ten years for murder. To his family's shock, he intends to go straight and wants no part in the family business. Instead, he gets a job at the Jockey. But he immediatly clashes with Karen Jackson, whilst Carol launches a "Free Kev and Veronica" campaign.
Monica is determined to win Frank away from Sheila. A new policewoman starts work on the estate. Frank decides to stay with Sheila but is it too late.
Ian gets involved with somebody on the run. Everybody is worried when Mimi Maguire suddenly stops talking. Karen and Jamie try to get one up on each other.
Monica is jealous of the time Debbie is spending with Frank. Monica encourages Debbie to find a boyfriend but Frank isn't happy with her choice.
It's Monica's birthday, and Carl is desperate to have his family together. But that means getting rid of Monica's ex-girlfriend Norma - for good. Meanwhile, Frank gets a job working on the Maguire's ice cream van that they use to deal drugs from. It's going well until the van is stolen by an angry mob with a score to settle. Frank and Shane must get the van back before Paddy finds out, whatever the cost. Elsewhere, Mimi kidnaps Karen after her meddling results in Karen calling off the wedding and tries to bully her into changing her mind, whilst Lip is left with an unusual side-effect after being tasered by Carrie, and Kelly Ball returns to Chatsworth and moves in with Lillian.
A series of explosions spark fear that there is a terrorist at large in Chatsworth. But with all the deaths in his family lately, Paddy fears the Maguire's are under attack. However, he has bigger problems to deal with when Shane and Mickey lose a box of semtex meant for some dangerous associates. Meanwhile, Frank and Monica's marriage becomes strained after a secret from the past resurfaces. Monica begins sleeping with Norma. Seeing Norma is splashing the cash, Frank attempts to steal it. But when this fails, he finds himself in court accused of sexual assault - and his only way to clear his name could cost him everything, whilst Yvonne sets up a call centre and recruits Lip and Lillian to help.
When three of his former prison cell mates die in strange circumstances, Paddy believes that he will be next. Karen wonders if marrying Jamie is a good idea.