Season 1

When it opened in 1991, HMP Belmarsh was the first prison for men to have been built in London for over a century. A new breed of “supermax” jail, it was designed to take criminals considered a threat to national security, including IRA terrorists. Kemp witnesses the effect of drugs on prisoners, gets an insight into rehabilitation efforts and visits a special unit that has housed notorious offenders incuding Soham killer Ian Huntley, hate preacher Anjem Choudary and black-cab rapist John Worboys.