Following the crimes and incarceration of James 'Porky' O'Rourke's, including when he committed murder at age 22 by dropping a slab of concrete on a mans head. The episode documents his time in prison, such as his attacks on prison officers, stabbing the governor in the exercise yard and strangling a fellow inmate.

Mark Hobson is a man with an extreme propensity for violence; a notorious British spree killer who murdered twin sisters, as well as an elderly couple in their own home.