An introduction to life for inmates and guards inside Mountjoy prison, from the morning unlock to prisoner punishment and everything in between.

Prison guards think about possible backlash from inmates after a rule is changed that forces D-wing prisoners to have screened visits.

The prison reaches maximum capacity. The staff attempt to manage tensions on the landings, but they must deal with the constant drug-use of inmates.

The repercussions are felt by both inmates and staff when a prisoner dies in custody. The capacity issue finally comes to an end.