Chris's behaviour threatens Karen's job and the school's future as the inspectors visit.
Scout ruins Chris's community gardening project when her home life spirals out of control.
Having confiscated drugs from a pupil, Chris is shocked to learn she is a drugs courier.
It is the day of Sambuca's memorial service, and everyone struggles with their grief.
Sambuca enlists Lauren and Finn's help to track her father down in Blackpool.
Chris takes a new pupil under his wing. Finn delivers some shocking news to Sambuca.
Amy Porter has a stalker, which draws battle lines between Karen and Eleanor.