News breaks of a landmark US court ruling about the Sandy Hook shooting, raising the hopes of victims of conspiracy theories in the UK, in their own struggles for accountability.

When Infowars host Alex Jones is ordered to pay almost a billion dollars in damages for the false claims he promoted, Marianna Spring is contacted by many of the people she has spoken to during the series.

She is also sent reaction by other bereaved relatives of terror victims, who have been targeted with conspiracy theories and online abuse.

In this final episode, Marianna reflects on her investigation. She learns more about the libel action that Martin Hibbert, a survivor of the 2017 Manchester Arena attack, is taking steps to bring against the conspiracy show host Richard D Hall. And there is news from YouTube.

Presenter: Marianna Spring Producer: Ant Adeane Editor: Ed Main