Conor Woodman follows trading standards officers in Oxfordshire and North Yorkshire as they track down people suspected of tricking the elderly and vulnerable out of their savings. He meets those who have been defrauded and their relatives to gain an insight into how the doorstep con artists prey on their victims' trust and age-related conditions such as dementia.

Conor Woodman follows more trading standards officers across the UK. In Surrey, Raith Bennett accompanies police as they arrest someone suspected of conning a vulnerable man, and 26-year-old trafficking victim Mark Ovenden talks about his experience as a labourer held in appalling conditions by a group of travellers. Meanwhile, an offender who previously escaped justice is tracked down in Dudley in the West Midlands after swindling homeowners out of thousands of pounds.