Bobby and Sylvia's relationship is ruined when he informs her he's bringing his partner home; Janine goes into premature labor.
A celebrity designer arrives at Larkhall; Janine learns she is pregnant; Joy wants to redesign G-wing with Catherine's help.
Di pleads not guilty in Jim's murder; Joy decides to change the cell allotment; Natalie plans her escape during an outside visit with her brother.
When the police investigate Jim's death, it is clear that the suspect list is endless; following a cell inspection, Natalie gets a TV.
While Sylvia waits to sell Malcolm's flat, she offers her spare room to Di; Sheena and Pat admit their feelings to each other.
Jim asks Di for a divorce; Bev rescues Phyl when Frank tries to rape her; Pat and Sheena's budding relationship makes Arun jealous.
Jim refuses to have anything to do with baby Dylan while Di cares for him; Pat offers to share a cell with Arun; Natalie and Janine hope to plan an escape by studying a map of the prison; Jim gives Sheena an early release.
Jim has the doctor's permission to consummate his relationship with Di following his vasectomy; Neil decides to allow Arun back into G-wing.
Di encourages Sylvia to come clean to Malcolm; Natalie convinces Janine to take blame; a new inmate exposes Sister Thomas' real crimes; Arun decides to make a change.
A nun arrives at Larkhall and faces opposition from Natalie; Jim finds the letter that Natalie was going to give to Di.
Julie S. returns to Larkhall for her recovery.
Julie S. begins her cancer treatment.
Ritchie's funeral; Julie S. receives bad news.
Christopher Biggins is taken hostage in a protest about Larkhall's future.
Denny is horrified when she learns that Shell has been to a secure mental hospital and is deeply suspicious.
Di shows Neil a new anonymous letter from Gnasher; Neil greets Eric Bostock from Linford Securities.
Colin takes the new blonde for her processing.
Di and Neil are married, although only they and Jim know it is a marriage of convenience.
Karen returns from her holidays to be met by Yvonne's son Ritchie; the Julies and Tina sign up for education classes.
Julie J's mother gets eight years for the attack on her pimp.
Shaz's vacant bed is quickly filled by a mysterious and glamorous blonde, who claims to be a Hollywood actress.
Sylvia's tenure as Wing Governor doesn't get off to an auspicious start.
With Jim back in uniform, Neil desperately needs a new Wing Governor.
Karen is left reeling after Jim assaults her.
Crystal has her baby in the dorm; Buki lobbies to be a nurse and is drawn to a baby named Baxter.
Buki attempts suicide; Cassie and Yvonne plan fraud on the computer; Di seduces Neil.
Neil alienates Fenner; Roisin sinks deeper into drug abuse; Shaz and Denny vow revenge on Buki.
Buki is dragged from the tunnel; Rhiannon confesses to prostituting herself for Damien; the Julies go after Damien.
A fight ensues on G wing when Maxine and Al are brought back charged for killing Virginia.
Fenner once again approaches Yvonne about Maxine; Denny ends up back in G wing; Di confronts Shaz.
Yvonne returns to G wing after confessing to manslaughter; Fenner warns Maxine; the wedding gets canceled.
Yvonne fails to escape; Fenner leaves Karen, despite her repentance for doubting him; Maxine and Al go on the offensive.
The police probe the scene of Virginia's death; Karen confronts Fenner with Helen's accusations.
Maxi and Al beat Tina; Jim asks Karen to marry him; Spanish police appear on Shell and Denny's yacht.
Josh receives a surprise package from Denny that could prove Crystal's innocence.
Shaz pines for Denny; Mark begs Gina's forgiveness; Virginia wants Jim to help her get her own cell.
A new inmate arrives at Larkhall and the prison staff find that they are ill-equipped to deal with a disabled prisoner.
The aftermath of the riot leaves Nikki very unpopular; the two Julies are released from Larkhall.
Yvonne is determined to keep her position as top dog, and sparks fly.
Crystal goes on a hunger strike to protest the result of her drug test; Josh realises what Di has been up to and confronts her.
The inmates don't take kindly to a new prisoner; Crystal is distraught to be back in Larkhall, and Di is determined to make it difficult for her.
Shell and Denny enjoy their first night of freedom as Shaz is captured and brought back to Larkhall.
Larkhall has some excitement as a film crew that is making a documentary arrives; Denny, Shell and Shaz escape.
Shell is alarmed to see that Podger Pam has been transferred to the single cells on G Wing.
Teen crack addict Buki Lester arrives in Larkhall; Yvonne double-crosses Charlie in court; Shell terrorizes returning Fenner.
A new officer arrives on G Wing and makes her presence felt.
Sylvia rallies the officers to strike by all calling in sick; Di learns Dominic will not be returning to Larkhall.
Dr. Nicholson keeps Fenner alive; the police plan to charge Shell with attempted murder; Shell is transferred to the psychiatric wing.
Shell stabs Fenner with a broken bottle, and in the ensuing chaos, Helen is able to sneak Nikki back into the prison.
Crystal is finally released; Nikki escapes to be with Helen; Fenner succumbs to his desire for Shell.
Helen's date with Dominic causes tension between her and Nikki; Shaz meets with the widow of one of the elderly people she killed.
New prisoner Renee makes enemies fast; Helen tells Nikki that new evidence has arisen that will benefit her appeal.
A new arrival at Larkhall threatens to cause trouble; Julie J. plans to help Julie S. get pregnant; Shaz and Denny sneak out of their cell at night.
Josh breaks off with Crystal; Dominic comforts dying Zandra; Barbara and Shell battle in Shell's cell.
Crystal is torn between caring for Zandra and starting a new life with Josh; Zandra's test results affect Dominic more than he anticipates.
Helen returns to the prison in a new job; Zandra's condition worsens; Nikki and Helen resume their affair.
The new therapy sessions have a violent affect; Nikki gets an unexpected visitor.
A case of mistaken identity leads to an increasing number of violent incidents when an HIV-positive prisoner is brought to Larkhall.
Hollamby's humiliation continues; Shell is self-loathing after rejections from Josh and Dominic; the Julies arrange a liasion for Crystal and Josh
The police investigate Shell's beating; Lauren brings Julie J.'s kids for a visit; Hollamby falls down stairs.
Shell continues to harass Fenner by calling his wife; Helen lets Zandra return to the wing; Helen tries to end her affair with Nikki.
Helen's return delights Nikki and dismays Jim and Sylvia; after Zandra has a baby boy, Robin agrees to give her another chance.
The inmates petition to resume open visits; Monica again tries to kill herself; Helen tells Sean she cannot marry him.
Shell cons Crystal into writing about the prison drug problem; Lorna gets in trouble; Nikki talks Monica out of suicide.
Julie Johnston's birthday card contains a recipe for booze; Monica learns her son died from a heart attack.
Zandra revels her drug source to Shell and Denny; Sean proposes to Helen.
Helen learns the truth about Zandra's escape; Denny attacks Jessie with a fork over a childhood trauma.
Helen voices her suspicions of Jim, protects Nikki and faces Stubberfield's questioning.
Zandra heads for the clinic for an abortion, and disappears; Shell continues to torment Rachel.
Despite warnings, Rachel grows close to officer Fenner; a new inmate arrives, guitar and all.
Two new inmates arrive; harassed Rachel, at Shell's behest, accuses Nikki of abusing drugs.
A planned fashion show inside a women's prison is canceled after a riot protests a pregnant inmate's mistreatment.