New head Vaughan Fitzgerald arrives with his partner Allie and her two children.
Darren's world falls apart after a shocking incident at home.
Vaughan is anxious about the launch of Waterloo Road's big community initiative.
Darren can't understand why Rhiannon is taking the virtual-baby project so seriously.
Gabriella returns to school to find some students determined to make her life difficult.
Will the pressure of mock exams prove to be too much for Lenny?
Simon and Sue's dinner party goes badly wrong after Hector speaks out of turn.
The police descend on Waterloo Road as the hack on Wiredata Systems is traced to it.
Allie convinces Vaughan to send Justin to a boarding school.
Sue finds herself in hot water when Hector threatens to tell Simon about their affair.
Vaughan goes to the police after Justin punches Allie, and Darren arranges a surprise.
It's a new term and the council wants to merge Waterloo Road with Havelock High.
Vaughan hopes the new bike bank scheme will show the school off to the community.
Christine's plan to keep Audrey's smothering at bay backfires on her.
A science trip to the coast sees Kenzie stuck with Bonnie, Scott and Justin.
When Havelock High visit Waterloo Road, there are certain things they shouldn't see.
It's mock exam week and the pressure is on, but for Dale it's all about a bike trial.
Dale struggles to come to terms with his failure to make the cycling team.
Dale's erratic behaviour reaches new heights. Lenny and Maggie try to pick up the pieces.
Vaughan is torn between campaigning to stop the merger and Justin's exclusion.
It's consultation day, the final chance to stop the school merging with Havelock High.