When a skeleton is unearthed, a car key is the only clue to the victim's identity.
A new discovery leaves the team shocked and devastated.
Cassie and Sunny discover that James, Tim and Chris have all lied to them.
Cassie's mistake has devastating consequences for one of the suspects.
Crime drama centred around a historical crime, unravelling secrets left buried for years.
The team travel down to Middenham to meet Hayley 's family.
Cassie and Sunny work on trying to prove a final theory into David Walker's death.
A disturbing allegation about David opens up a second line of enquiry for the team.
Detectives Cassie and Sunny begin to find out a bit more about who David Walker was.
Father Robert finds that revealing the truth has lasting repercussions.
The investigation into Jimmy's death continues as Cassie and Sunny quiz Sir Phillip Cross.
DCI Cassie Stuart begins to identify the people mentioned in the diary of Jimmy Sullivan.