A group of workmen dig up roads and pavements to re-connect derelict buildings to the UK power grid.

Local residents soon suspect that all is not as it seems and what‘s discovered is greater than they could have imagined.

Presenter: Rima Ahmed.

A man living in the quiet town of Fakenham, Norfolk is warned a hitman has been hired to kill him.

He discovers a story of obsession and revenge.

Presenter: Rima Ahmed.

For information and support for issues covered in this episode, visit bbc.co.uk/actionline.

People living in Newport, Pembrokeshire, start spying on some interesting, wealthy but slightly suspicious visitors.

Presenter: Rima Ahmed.

£3m of Ming Dynasty treasures vanish from Geneva’s Museum of Far Eastern Art.

After what was a peculiar heist, suspicion falls on the Ahearne brothers who are being watched by police in the UK and Switzerland.

An undercover cop meeting is set in an attempt to recover the stolen artefacts, before they're gone for good.

Presenter: Rima Ahmed.

Arthur Knight claimed he was an Irish orphan during a police interview in a hospital in Glasgow, Scotland.

The Police were tipped off that the patient could actually be American fugitive Nicholas Rossi, who was wanted in Utah to face rape charges.

Presenter: Rima Ahmed.

To watch on BBC iPlayer - search for: Big Cases ‘Unmasking a Fugitive’.

The McDonagh’s from Port Talbot in South Wales go out for a steak dinner in Swansea and leave without paying. The restaurant posts to social media to try and track the family down, only to find that this wasn't their first 'dine-and-dash' meal.

Presenter: Rima Ahmed.

'Army medic' Tanya Nasir’s CV lands her a prestigious job on the neonatal unit at the Princess of Wales Hospital in Bridgend, Wales, but all is not as it seems.

Presenter: Rima Ahmed.

Two Welsh metal detectorists make an astonishing discovery in a farmer’s field and try to secretly sell the treasure before the authorities track them down.

Presenter: Rima Ahmed.

Patrick O’Hara lives a comfortable life with his partner in Newcastle. But a routine visit from a suspicious community nurse is about to put him on life support.

Presenter: Rima Ahmed.

Carolyn Woods starts fresh in the quaint town of Tetbury, Gloucestershire. She falls for the charming Mark Conway, an ‘MI6 spy’.

He says he’s not normal. After moving in to his apartment in Bath she finds out what that really means.

Presenter: Rima Ahmed.