Following the discovery of human limbs in Loch Lomond and a severed head on Barassie Beach, Strathclyde police launch a murder investigation.

As detectives hunt for William Beggs in relation to the murder of Barry Wallace, they delve into the suspect's past.

As the search for William Beggs continues, detectives make a shocking discovery that turns the investigation on its head.

The search for William Beggs becomes an international manhunt as detectives uncover more secrets from his past.

William Beggs is fighting extradition in the Netherlands, while detectives make a crucial breakthrough when a new witness comes forward.

William Beggs stands trial for the murder of 18-year-old Barry Wallace - will the jury find him guilty or innocent?