Angus wakes from a drug-induced sleep to learn that Kirsty is fighting for her life in hospital. When he realises he's the architect of her downfall, he's riddled with guilt but with a distraught Finn in the frame it looks like he might get away with it. Will finds himself at odds with DI Donald and Robbie as he fights to prove Finn's innocence. And Alan makes a difficult call to his estranged wife about their daughter's condition.