The net tightens as police arrest George and Layton and search their homes. But when the missing treasure is nowhere to be found, investigators start to wonder: is the hoard even real?
Meanwhile deleted photos offer a new lead.
Narrator: Aimee-Ffion Edwards
Contributors: Tim Hoverd, Nigel Cleeton, Peter Reavill, Simon Wicks, Gareth Thomas, Dr Gareth Williams, Kevin Hegarty KC
Sound Design: Peregrine Andrews
Production Co-ordinator: Dan Marchini
Associate Producer: David James Smith
Producer: Aron Keller
Exec Producer: James Robinson
A BBC Studios Audio Production
