14-year-old Holly has written a school essay in which she accuses her stepfather of physical abuse. The social services' most experienced social worker, Lars Madsen, is handed the case.

Learning that Holly has a lively imagination, Lars begins to doubt her version of events. In an attempt to cheer Theo up, Holly writes to her mother, informing her that Theo will be at football practice.

Feeling homesick on his birthday, Theo runs off from foster care and heads for home. Simon is pleasantly surprised to find Theo back at the family's house.

A video of Lars fetching Theo goes viral and Lars feels the full weight of public outrage. Simon is emboldened by the online support.

A few days before the case is to be heard by social services, Lars begins to have serious doubts about Holly having suffered domestic abuse.

Holly and Theo return home to a strained family atmosphere. Dea is keen to create a positive vibe and mend the fences, but Simon is feeling paranoid towards Holly, who refuses to take part in the family's reunion.