Alchoholic Jessie Devlin arrived at G-Wing for 2 weeks, and was ridiculed by the inmates, and Sylvia, for being drunk. Later that night, at the pub, Dominic blabbed the truth about Zandra's escape at the clinic, to Helen. She was angry and said she'd have to tell Stubberfield. Denny attacked Jessie with a fork and, when asked why she had done it, admitted that Jessie was her mother who had abandoned her as a child. After her release, Jessie sent Denny a letter saying that she hadn't had a drink for 2 days and asked for a visiting order. Helen told Dominic that she had told Stubberfield about Zandra's attempted escape and that his and Lorna's jobs were safe. Sadly for Lorna, no-one had told her as she was in the process of smuggling in valium for Zandra!

Sean proposed to Helen but she left for work, leaving him to ponder. Shell and Denny kicked Zandra and made her tell them who her supplier was - then they made her lure Lorna into the toilets. Lorna declined to get Zandra more drugs until Shell emergedfrom the cubicle and threatened her. Lorna then smuggled more drugs in and was nearly caught by Fenner. Spencer visited Monica but looked ill. Nikki was moved into a new, better room as a privilage. Sean did a presentation at the prison where he was introduced as Helen's partner; much to Nikki's disgust. After seeing inmates entering and leaving Shell's cell, Dominic investigated and found drugs in the Budgie's cage. Shell then shouted that it was Lorna who supplied them - only Fenner beleived her though. Shell had her priveliges removed after the drugs incident so took out her anger on the budgie - poor little thing!

Sylvia was severely repremanded for her mix-up last week and, when she blamed her neck injury for being ""below par"", was put on an exercise regime. Zandra was diagnosed with low blood pressure and appalling eyesight after her fainting episode - was the Doctor right and did he care? Barbara revealed that she was in prison for helping her terminally ill husband to die and seemed uncomfortable about sharing a room with a lesbian. Shell appeared to be further losing her sanity. Sylvia (and her shellsuit!) were laughed at by everyone. Shell bullied Barbara into getting a pen from art class and then made her write 'Fenner is a rapist' on the wall. Helen visited Nikki, much to Sylvia's shock. Nikki defended Babs when Shell accused her of all the vandalism. Karen discovered that Sylvia's neck wasn't really bad enough to have to wear a neck-collar. Helen became head of the lifers unit.

Karen informed the staff of what Helen's new job would entail. Yvonne received a calendar from Charlie, featuring the photographs of Jim, at the golf course, taking the money. Zandra suffered a fit and is taken to the hospital for tests. Yvonne summoned Fenner to her cell to show him the ""4 developments"";- Photos of him and Charlie with the money. She informs him she wants out of Larkhall, he had no option but to comply. Yvonne wanted the car that she would be in to be held up for her to escape, but that isn't to be - Charlie was really arrested before she left Larkhall - she left anyway and tried to escape from a toilet window on the way to the 'hospital' - Jim latched on to her idea when he reads in a newspaper that Charlie has been arrested, and stopped Yvonne escaping. Helen secretly photocopied Niki's file.

Dominic returned from his holiday. Shell told Karen about her childhood - both her parents sexually abused her! She is then worried about her kids, who were staying with her. Karen then set up a visit for her with her mother Rita so that she could discuss the kids. During the meeting, the truth came out and Rita was quick to blame Shell's father. She was told that Shell's children would be taken into care. Yvonne distributed mobile phones to Denny and the 2 Julies - they set up a sex chat line, with Yvonne's daughter Lauren's help. Dominic wass shocked to learn that Zandra had a malignant brain tumour - she needed further tests to determine if it was operable or not. Later, Dr Nicholson unsympathetically told her that it's inoperable and that she had months to live! Dominic voiced his anger that the Dr was doing nothing to help her and that she should be released for her final months. Shell joined the Sex line plan, now called 'Babes Behind Bars', much to Yvonne's annoyance. On Crystal

Crystal is on a hunger strike to protest about her drugs test results and, after a retest is proved right! - Josh then realises what Di did and prepares for a confronation! Jim was horrified to learn that Helen was the governing governor, replacing Simon Stubberfield! Helen officially appointed Dr Waugh as new prison doctor and seemed to get on really well with him. Josh and Crystal got 'married' in the prison chapel in a service conducted by Babs. Nikki received news that her appeal was being transferred to the high court, meaning she had a good chance of being successful. The Peckham Boot Gang made a noisy arrival at Larkhall but what wing will they be on?(!) After a heavy confronation with Josh about the drugs tests, Di took out her violent anger once again on her mother, and the next day after being called ""sick"" by Josh, spiralled out of control - after being taken home by Jim, she was horrified when he discovered her badly bruised, neglected mother in her house!

The Peckham boot gang arrives on G-Wing, causing chaos! Nigerian prisoner, Femi, can't speak a word of english and a peaceful protest about her treatment, led by Nikki, goes horrible wrong after the Boot Gang turns it into a full-scale riot! Charlotte Myddleton is shipped out to an open-prison. Al begins bullying Shaz but gets more than she bargains for from Yvonne - will Al and the rest of the Boot Gang ""waste her""?! During the riot, a new prisoner, Caroline, catches Nikki's eye. Violence erupted further when the screws, in full riot uniform, attempted to put the inmates into their cells! Helen was furious with Nikki after Sylvia told her about her envolvment with the 'peaceful protest'!

The riot finally ended peacefully because Nikki locked the Peckham boot gang in their cells - sadly for her though, Helen told Nikki that their relationship was over because of the part she had played in the chaos. Nikki then took an interest in new prisoner Caroline. The Julies argued over their plans for the future now that Julie S had met Trevor again but to their horror, they were re-arrested outside the prison gates for past crimes they had committed while working for Virginia O'Kane as 'The 2 Trudies'. Helen seemed to be yet more friendly with Dr Waugh. Femi was moved to E-Wing with Fatima, an english-speaking Nigerian prisoner. Nikki was perplexed as to why Helen was telling her to ""be careful"" of Caroline but found out from Maxi that Caroline's crime wasn't fraud...she was in prison for sexually abusing children!!

Karen returned from her holidays to be met by Ritchie Atkins - She later told Yvonne about her relationship with her son, leaving Yvonne visibly annoyed. Neil's stag night turned out to be a dinner for two...for him and Jim - After slipping a drug into Jim's wine, Neil finally got what he wanted, much to Jim's disgust the following morning! Cassie and Roisin found out from the internet that Buki's son was disabled, causing Buki to start cutting herself again. The '3' Julies signed up for an education class but found that only Julie S was cut out for it. We finally learned about Snowball's dangerous plan - to plant a bomb on G-Wing to help her escape...!

In this thrilling series finale, the prison open day has arrived. Di and Neil are married but Jim still feels uncomfortable knowing that it's a marriage of convenience. Yvonne finally realises that her son and Snowball are setting her up but it's too late as she is carried down the block by Fenner. Karen & Jim find a planted gun in her bag so put it in her drawer. After the guests are taken outside by Sylvia and Di, 11:00 comes and Snowball's bomb detonates, seriously injuring Neil who was in the library - thanks to Roisin's quick thinking, his life was saved. Snowball, now dressed as a nun, was stopped at the last possible moment by Karen at the gate and immediately put down the block after being strip-searched. Sylvia and Jim maliciously put her in the same cell as Yvonne, and told Yvonne ""She's all yours, you've got 5 minutes""! Shaz and Denny were locked in a visiting room when the bomb detonated and are trapped - sadly for Shaz, she was too high on magic mushrooms to realise the da