The gruesome murder of a woman, triggers a chain of events as evidence links the killing to a 20-year-old unsolved case.
Molly, who has been crushed by Daisy's loss, uncovers a strange symbol that sparks her interest in finding Freddie.
Lily, Molly's daughter, engages in some dangerous internet behavior, which Freddie orchestrated to get back at Molly.
As Freddie puts Lily's life in danger, Molly must act quickly to save her.
When Molly learns about Jacinta Clunes' unexpected death, she believes Gareth is to blame.
When a lady is revealed to have the same blood disease as Dorothy, the investigation achieves a breakthrough.
The samples of blood that had been found on Clunes's car, unravels a family connection to Dorothy.
The situation reaches its peak, as Gareth abducts Molly, while William and the Crofters capture Alex.