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Four female convicts break out of prison, and during their escape they take hostage a bus full of young female tennis players. They drive the bus to the house of the judge who originally sent them to prison, where--since this is after all a women-in-prison picture--the hostages undergo various forms of physical and sexual abuse in various degrees of nudity.

After being arrested on accounts of child abuse, Mr Hillbilly is incarcerated in the Dark Portal Penitentiary. He must make a daring escape with his good friend Pitrensky to evade Dr Blaufunnsmurch and his infamous penitentiary.