Sid's good intentions are misunderstood, and he finds himself in the line of fire again. Valerie has a tough decision to make, and Al gets some home truths about his underhand behaviour. Heston, Mrs Tembe and Ayesha meet a troubled homeless girl with a rare mental health condition on the outreach bus, but can they help her?

Daniel thinks his approach to getting Zara back on track will be a walk in the park, but is he right? Valerie's day trip out is no picnic, and Al is confronted with some harsh truths. Meanwhile, Karen puts Heston in a difficult situation after his consultation with James.