Tom's controversial move to bring the army into school proves disastrous when an angry pupil spots their chance for revenge. In his committed attempt to save the day, Tom ends up putting his future with Davina at risk. Meanwhile, Kim's grip on Grace seems to be slipping as the Home Office investigation hots up.

Steph and Rachel lock horns over a pupil whose strange behaviour conceals a disturbing and dangerous secret, as a distraught Donte begs Chlo not to go through with her life-changing decision.