The Best Episodes Directed By Gareth Bryn

DCI Jo Davidson faces increasing pressure from all sides as AC-12 make major breakthroughs in the investigation, but an attempt to interview a key witness goes horribly wrong.

Mathias is under pressure. His wife Meg has turned up in Aberystwyth and he's under investigation by the IPCC following the death of Mari Davies at the end of the last episode. When a bus driver is found shot dead on an isolated mountainside, the investigation provides a welcome escape.

On the strength of evidence from a new witness, DCI Jo Davidson brings Terry Boyle back in for questioning about Gail Vella's murder. Kate is torn between loyalty to Jo and wanting to assist AC-12's investigation, and tensions increase when Kate encounters a face from the past with links to organised crime.

DCI Tom Mathias and DI Mared Rhys are confronted by a family in grief and a community in shock when they investigate the violent death of a local minister.

At a remote farmhouse, sixty-nine year old Idris Williams is discovered bludgeoned to death, and the investigation into his murder reveals the mountain’s bloody past.

Laura Dean, a curator, is discovered in a shallow grave in remote woodland. Mathias and his team must delve into the young victim's life to unearth some shocking secrets. Meanwhile, Prosser - still reeling from the death of Iwan Thomas - calls on the help of retired Chief Inspector Robert Owen.

As Jessica and Adam's relationship takes an unexpected turn, Kelly is furious to find that her gymnastics dream has been sabotaged

Kelly is shocked to discover the truth about Bazi. As she heads to the illegal beach rave on the remote Hilbre Island, Kelly's threats place her in danger.

Drugs, drink and simmering emotions explode into multiple showdowns and a violent assault at the illegal rave. Kelly is rushed to hospital in a critical condition. But will her attacker evade justice?

The rivalry between elite gymnasts Kelly and Jessica turns toxic. Kelly's dad Paul is haunted by an accuser from his past, and Kelly becomes jealous of Jessica's attraction to her best friend Adam.