The school drama returns, and chaos descends when what appears to be a masked intruder disrupts the start-of-term assembly. However, the intruder is soon revealed to be new PE teacher Hector Reid. Meanwhile, new girl Gabriella Wark causes a bit of a stir.

Gabriella sees a chance to drive a wedge between Imogen and Dynasty's friendship when she offers to take Imogen on a wild night out. Meanwhile, Simon is busy organising an event to promote the Resilience Camp, but he has forgotten to clear it with a preoccupied Christine.