This extraordinary episode opens with the dawn arrest of a man on suspicion of conspiracy to murder. The film documents the work of the lead detectives as they investigate and interview the suspect about his involvement in a plot to shoot a man.

Police Constable Cheryldeen Liversidge and Police Constable Kat Alison investigate two strongly contrasting stories about harassment and domestic abuse.

News spreads across the county about a suspected paedophile trying to abduct young children on their way home from school. Local press coverage has led to hundreds of calls from panicked parents to the police.

This episode opens with a young man accidentally dropping a large quantity of cocaine from his jacket pocket outside a petrol station - all caught on CCTV.

It's Saturday night in Luton, and Bedfordshire Police are dealing with drunken domestic disputes and a booze-fuelled fight.

A devout Muslim has been arrested on suspicion of assaulting his daughter with an iron, after she married a man he does not approve of. Bedfordshire Police have set up a dedicated `honour-based violence' unit at Luton, but the investigation falls to DC Rachel Chandler in CID. Will she succeed in finding the evidence before time runs out?

Drunken abuse, the theft of 98p's worth of fizzy drinks and the joyriding of a 45-seater bus are all in a day's work for acting sergeant Wil Taylor. Some can seem like a waste of police time, while others quickly become serious - such as the case of three sex workers who have been arrested during a raid on a local brothel. Are the women victims, possibly trafficked to the UK from Eastern Europe, or are they running the business and exploiting others? Last in the series