New headmistress Karen Fisher has her hands full dealing with Waterloo Road's newest family -- two previously home-schooled pupils, Ruth and Jonah Kirby.

Jess becomes jealous as Karen and Chris grow closer professionally and sabotages their friendship by publishing a vicious article in the school newspaper.

Chris finds himself in a difficult position when a controversial new sexual health initiative highlights the sensitivity surrounding sexual issues.

A confused Josh finds his sexuality is the talk of the school when, much to the humiliation of Lauren, he tries to kiss Finn.

Marcus' first day almost ends in disaster when he wades into Ronan's home life before properly understanding the situation -- driving father and son further apart.

Sam attempts to get rid of drugs brought into school by Lauren and Amy, while Ruby, jealous of Janeece and John, tries to put the spark back into her marriage.

Ruth gets a taste of popularity when she proves to be Waterloo Road's strongest entrant to the Interschool Debating Contest, but will it last? As his bullying continues and his parent's separation causes conflict, Harry's bulimia reaches a crisis point.

Vicki home situation spirals out of control as she fails to juggle her schoolwork, living in a hostel and visiting her critically ill father. Caring for Fleur begins to affect Grantly's ability to perform his job.

Chris' controversial scheme to equip Waterloo Road with CCTV backfires when it risks exposing his one-night stand with Jess Fisher. Seeing how badly Grantly is coping at home, Ruby calls in an old familiar face to talk some sense into him.

After much deliberation, Grantly finally places Fleur in a care home, but he has to resort to drastic measures when he realizes how much money he needs to raise for her fees.

Karen and Chris launch a new scheme separating boys and girls. A Year 10 pupil is accused of sexual assault. Bex Fisher refuses to open up to her family.

Year 10 student Billie Taylor is convinced that her own mother is trying to steal her newborn daughter from her, so Janeece offers to help. The staff are shocked by Grantly's disheveled appearance and decide he needs more assistance at home.

Nate and Josh's burgeoning romance hits a rough spot when Nate's homophobic dad finds out about their relationship and Tom is forced to bear the brunt of his anger.

Ruby's political views land her in hot water when she unwittingly encourages a student's racial abuse of the new school caretaker. Cesca finds it increasingly hard to resist Jonah's seductive charm.

Harry's cry for attention veers out of control when he steals Karen's phone and uses it to send incendiary emails. Karen and Chris deal with the boy-only initiative.

The truth about why Bex ran away is finally revealed when student Wayne Bodley stumbles upon compromising footage of her on the internet. Tom's recovery is tested as he's forced to deal with the fallout and try to correct Wayne's attitude towards women.

Finn and Ronan's party in an abandoned mill is the talk of the school, but the boys' bragging ends up alienating the only two girls they want to show up: Vicki MacDonald and Sambuca Kelly.

Adanna is dismayed to learn that Dan will be judging the fashion show. Ronan attempts to bolster Vicki's flagging confidence. Cesca and Jonah make a decision that will change their lives forever.

Cesca hands in her notice; if she's not Jonah's teacher then they can go public with their relationship, but Chris is onto the couple, and it seems like their affair can't be contained any longer. Adanna unveils her latest plan to unite the sexes.

The day of the Waterloo Road pantomime has finally arrived, but when Finn gets Kyle purposefully kicked off the cast, Sam begins to doubt their relationship -- he's not the boy she thought. Denzil learns his lesson when his latest stunt ends in tragedy.