With new drugs hitting the streets, a head teacher confronts the dealers preying on his community, as the team deal with a surge in drug-related crime.
Quest roles:
Colin Salmon(Noah Taylor), Uriel Emil Pollack(Ramush), Radoslaw Kaim(Rudi), Samantha Womack(DI Kate Ashton), Tuwaine Barrett(Zeno), Dan Li(DS Lin)