After discovering a body after a devastating flood, PC Jo Marshall begins investigating the man's possible murder - however, pursuing the killer will change everything for her.

Jo's actions bring an unwelcome visitor to Waterside, who threatens to expose her secret investigation.

With Pat now a part of her investigation, Jo and Tasha discover an unexpected side to Daniel's life and Jo closes in on the killer.

Jo finally gets the answers that she has been searching for, but the truth will change everything.