Tragedy strikes, throwing the spotlight on a key suspect and forcing Gail to face the truth of who her husband is. Meanwhile, Linus and Caitlin's relationship deepens and Everett's taste in women gives Fiona cause for suspicion.

Seth's 'other side' takes him to a place that leaves him wondering if he can trust Steve. And as Alan's inquest looms, he and Fiona struggle to deal with the accusation of assault leveled against him, as well as an increasingly disturbed Charlotte.

As the town gathers for Hattie's memorial, things take a dark turn and a chaotic interruption has fatal consequences. Steve finally gets his moment with his ex, Angie - will he manage to win his family back?

Fiona must face her old colleagues in a way she never thought she would, while Gail frees herself of her old trappings. Meanwhile, Everett and Linus have a confrontation which takes their relationship to a new place and, as Caitlin makes an eerie transformation, Linus realises he has made a big mistake.