The Block

F.I.L.T.E.R., which started out as an initiative to stop the influx of terrible extra-terrestrial races, has become the organization in charge of jailing the most dangerous criminals and threats to our world. No government would acknowledge that F.I.L.T.E.R. exists, or that they can open portals to their time-locked prison The Block just about anywhere to book new prisoners. But they can. And they do.

The Warden runs a tight operation: besides the entire prison itself being kept separate from any known time-space dimension, the individual cells are cycled through time loops to nullify whatever powers or abilities the prisoners could bring to bear against the guards. However, there have been reports of disturbances within The Block, and someone should probably go check it out. If there were a full-scale prison riot there, it could spell disaster for every timeline accessible from The Block...