Imogen's on the phone when she's dragged into an alley and threatened with a needle. As she struggles, Imogen's hand is punctured by the needle. Imogen sobs as the mugger runs off with her purse and phone. At The Mill, Daniel takes blood tests to rule out infections like HIV and Hepatitis. Imogen accepts she'll have to wait weeks for the results. At the police station, Brian tells Rob they have CCTV proving the mugger was Dev, a known addict, and Imogen identifies Dev from a photo. At home, Rob tells Karen that Dev may have come into contact with blood-borne diseases and names the estate he lives on. When Karen quietly leaves, Rob assumes she's gone to find Dev and goes after her with Imogen close behind. Karen's actually gone to The Mill to look up Dev's file. Mrs Tembe catches Karen - but covers when Julia comes looking for her. Karen asks Daniel to confirm what the records mean. He's wary but agrees to help. Meanwhile, Rob, Imogen and Jack arrive at Dev's house, and Brian arrests him. Back at the station, Imogen rushes over to Dev asking if he's sick. Dev claims he has no infections; he's on a methadone programme. But Rob and Brian acknowledge he was in possession of heroin when they found him. At home, Karen reveals that Dev's last lot of blood tests came up negative for everything - but Imogen won't be in the clear until she gets her results. Elsewhere, Zara struggles to get Joe and his buggy down some stairs while out shopping and is shocked that no men offer to help her. Later, she attends a fitness class called 'Mothers Kicking Ass' and becomes competitive with the other mum's. Later, she approaches the same set of stairs and, back to her old self, demands that two strapping men help her.
