Thirty-year-old repeat offender Gemma, serving five years for burglary at HMP Downview in Surrey, talks about how her upbringing led her into a life of crime. She has a reputation for bad behaviour - which soon becomes apparent when she threatens a fellow prisoner. Meanwhile, new officer Jon Aldridge begins his first shift at HMP Bullingdon in Oxfordshire and seeks advice from one of the most respected men on the wing - top dog Anthony.