When the body of a teenage girl who went missing at the turn of the millennium is found at a building site off the M1 motorway, four men are placed…

Despite a tragic turn of events, Sunny and the team narrow down the suspects.

A dismembered body is found in a scrapyard and the team believes the remains had been stored in a domestic freezer for 30 years. Meanwhile, after making the decision to…

Cassie and Sunny discover Walsh was chased by all four suspects on the night in question. Willets realizes Fiona’s blood sample may have been deliberately lost by Liz.

Cassie and Sunny interview two of the suspects again and get closer to the truth of what happened to Walsh. Balcombe believes she may have found the cause of death.