(You have committed a crime. It is obvious that you will be sentenced to prison or Death Row. Unfortunately the latter is chosen... You are then placed into a special type of execution. An experiment involving a new biological weapon... Along with two other Death Row inmates who have committed their own felonies)

You are placed into a dark test chamber. Everything around you for some reason, looks like the interior of an abandoned building of sorts. Sitting within a room of the chamber. You exit the room to a hallway with doors that connect to other rooms. Then out of nowhere you hear screaming. You see one of other inmates joining you on this experiment, running away from something hiding in the dark. That something emerges, with the arm of the other inmate in it's mouth. It is a dinosaur-like creature, with an intimidating skull pattern in its head. It looks at you with the arm still in it's mouth, and smiles sadistically...