The Dark Knight, Elizabeth, and Constantine walked along the steel corridor.
All around them, there were battle robots which moved around with caterpillar tracks. There were also fully automated weapons that were concealed under the steel walls.
Other than the extraordinary humans who had been locked up, there were no other existences of humans in the entire prison. It was because the Dark Knight did not trust any humans.
This place was controlled by the artificial intelligence, Zeus Command, all year round. All extraordinary humans were locked up with special countermeasures against their powers. The moment there were any signs of breakouts and the prisoners were about to escape from the prison, the entire area would be vaporized by plasma flames which were at a high heat of over 20,000 degrees Celsius.