Camera crews spent four months inside HMP Aylesbury, Bucks, for a shocking TV documentary. Inmates include murderers, rapists, gangsters and paedophiles still in their teens — with one in five serving life or an indeterminate sentence to protect the public. And the hardened criminals reveal how they live for the potentially fatal fights — that can see up to six prisoners attacking a lone victim. The no-holds-barred footage, which gives a raw insight into inmates’ mentalities, will sicken victims whose lives have been torn apart by the convicts.

Part Two: