Monica Phelps is found dead in her apartment, her son Nathan hiding in the closet behind her body. Detectives soon link Monica's death to philanthropist Ted Carthage, who runs an organization dedicated to helping people get off the streets. Benson is certain that Carthage is the killer, but a shaky ID from Nathan puts him back on the street. After Nathan kills Carthage himself, Sophie Devere argues that Nathan committed the killing because he saw Carthage shoot his mother -- something the gun manufacturers don't like.
When five year-old Liam denounces religion at his RC Primary School and is subject to a home-visit by his teacher and the local priest, sister Debbie has to think fast. But shaving his head and pretending that he is dying of cancer is NOT one of Debbie's better ideas. In fact, by the time the rest of the Gallagher clan realise what's going on and try to set the record straight, the news has leaked out into the wider community and Debbie's lie lands the family in true Gallagher-style catastrophe. Could things get any worse for Debbie?