Isbecki discovers a mugshot which fits the profile of a long-running investigation. (R)
Watch from start
5/6 Amateur sleuth Richard Rollison refuses to be fobbed off, and receives some useful advice.
BBC Radio 4 Extra
2/5 A robbery at a burlesque club leaves the duo looking at cherries in a different light.
2/3 On the trail of the killer, George is reunited with an old colleague.
6/6 Finding an empty farmhouse safe, Richard Rollison edges closer to solving the mystery.
3/5 A man goes missing with £98 grand in bookie's winnings. But no-one seems to know who he is
3/3 George has a chance to take his nemesis down at last. Will he lose himself in the process?