Police dismantle an organised crime group using trafficked women in a network of brothels across Glasgow. And we delve into the Crimewatch archives to see how police caught the murderer of Suzanne Pilley.

When a violent burglar ties up a homeowner in Dunfermline, it would take a team of dedicated officers two and half years before they could finally catch him. Plus how a body builder in Falkirk was selling lethal diet pills despite knowing they could be fatal.

When a man confesses that a woman is lying dead in his house, police must establish whether she died as a result of an accident or if she was murdered. And a look into the Crimewatch archives. Detectives and forensic experts describe how Pembrokeshire killer John Cooper was finally found guilty of murder, decades after he committed his crimes. Advances in forensic technology finally helped police crack these two infamous double murder cases.

The cat-and-mouse chase to bust a gang who enrolled at Swansea university in order to sell drugs to students. Plus a twisted case of revenge. Why did a man who was attacked with a machete in Cardiff refuse to cooperate with the police? When a shooting happens on the streets, detectives finally find a link, but, bizarrely, it takes a visit to the x-ray department of the local hospital to finally find the unusual hiding place for the gun.

After a phone is left behind at the scene of a minor car crash in Cardiff, police go on to unravel a huge drugs conspiracy. Plus we go into the Crimewatch archives to see how the cold-hearted killer of Tati Rogers was eventually caught thanks to an elaborate double bluff set by the police in Wrexham.

How a determined police force took down the gang selling industrial amounts of cocaine and laundering their profits through multiple cryptocurrency accounts. Plus the solicitor stealing his clients money.

How a blackmailer using the dark web to buy personal details so he can blackmail people is finally caught in his home in Mold. Plus the detailed police investigation that smashed a gang of thieves based in Swansea, Neath and Port Talbot.