Episode 5 (E05)

Dom and Kay realise that the lady they saw superintendent Edwards visit at an old people’s home is not, in fact, her mother, and suspect 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 drugs to be dealt on the Brightmarsh Estate, but exactly who are they? And what do they have to do with geriatric care? (BBC iPlayer)