The discovery of an elderly man’s body within a remote home near Blaenau Ffestiniog prompts Detective Chief Inspector Cadi John and Detective Sergeant Owen Vaughan to take charge of the inquiry.

Detectives Cadi John and Owen Vaughan called on Karl Lewis at his home. Meanwhile, Mia attempted to forge a connection with Connor.

The town gathered as one to mourn Geraint Ellis. Meanwhile, Mia managed to draw Connor nearer, fostering a connection between them.

Detective Chief Inspector Cadi John was forced to release Karl Lewis, as there simply wasn't enough evidence to hold him. Meanwhile, Mia, Connor, and Lee created considerable disruption for Hefin, Beca, and Sion at the local petrol station.

It was Hefin who found Sion Wells’ body at the petrol station, and now D.C.I. Cadi John and D.S. Owen Vaughan faced a grim reality: they were investigating not one, but two distinct murder cases.

Detective Chief Inspector Cadi John and Detective Sergeant Owen Vaughan managed to bring Mia, Lee, and Connor into custody, yet the triumph felt strangely empty.