Donte falls victim to Izzy's rage as she struggles to keep her emotions in check, whilst Nicky returns to take on a new challenge as behavioural lead. Can she make a breakthrough with a troublesome Leoni? Agnes is at odds when Schuey encourages her to confront the past head-on, but is Leoni really as guilty as Agnes claims she is? Elsewhere, Darius's latest money-making scheme causes chaos when he brings a sniffer dog into school. How much longer can he run away from his debt problems?