Dom and Kay discover the lady they saw Superintendent Edwards visit at an old people's home is not her mother, leading them to suspect that the home may be a front for the gang. Meanwhile, gang member Tevin grows suspicious of the pair after following them to Hackney Police Station. By now, our duo know that powerful forces are allowing drug dealing on the Brightmarsh Estate, but exactly who are they? And what do they have to do with geriatric care? Dom and Kay, posing as volunteer visitors, investigate Riverford Residential Home, where Dom makes an unlikely ally and Kay's commitment to community service finally pays dividends.