The Prisoners

This episode follows a group of repeat offenders from Pentonville prison, which holds over a thousand male prisoners.

Mick is in his 40s and has spent years going in and out of jail; unless he gets housing once he's released, he will commit crime to get back behind bars.

Senol is trying to put a violent past behind him and build a better future with his fiancée, but on the outside he struggles with alcohol and his temper.

While each experience is different, nearly all share a shocking truth that many offenders feel more at home in prison than out.

Filmed over a year, this episode follows a group of repeat offenders from Holloway and Pentonville prisons.

Jayde is just 18 but has already been in jail six times. Stuck in a cycle of reoffending, she manages just two weeks outside before returning to Holloway.

Crystal feels at home in prison; at 23, she has been a regular inmate at Holloway prison since she was 17. On release she returns to her estate but, fearing this environment will cause her to relapse, she leaves in order to address her problems.

Craig, 27, is in Pentonville jail. For many years, crack and heroin addiction have brought only prison and homelessness. Now he wants to change.

While each journey is different, nearly all share a shocking truth that many offenders feel more at home in prison than out.

Filmed over the course of a year, this final episode follows a group of repeat offenders from Holloway and Pentonville prisons.

Chloe, in Holloway, has a cross-prison relationship with her fiance and co-defendant Michael in Pentonville. They want to build a better life together upon their release, but Chloe gets out first and has to face the world outside alone.

Ben deliberately offended to get into jail and get help, but can he stay clean when released? And can Holloway's Jayde finally break her re-offending cycle?