The Alliance for Purity is a fictional white supremacist group that has been active since at least 1966. They recruit both children and adults. T-Bag joined the group in juvenile hall, and later became leader of the branch inside Donaldson Prison. The group gathered a great deal of power resulting in some of its members being relocated to different prisons, including T-Bag who was sent to Fox River. Upon seeing that there was no AFP members there he founded a branch inside Fox River, granting him a lot of influence. It is unknown what happened to them after T-Bag's escape, but when he is eventually imprisoned again he is shown to have much control over the prison's inmates suggesting he may be a high-ranking member in that prison's branch.