The highest security prison in the entire world, the supervillain penitentiary Stronghold houses some of the most dangerous and diabolical superpowered threats on the face of the planet. This maximum security facility was built to withstand anything short of a nuclear bomb, and utilizes literally thousands of different safeguards, including a state-of-the-art “hot sleep” facility which puts certain uncontrollable criminals into an induced coma for the duration of their sentence. If there is such thing as an “escape-proof” prison, Stronghold Supervillain Penitentiary is the place!