Gabriel the Angel had come down from heaven several times to complete missions for the Lord. This mission would be more difficult than the rest because it involved the possible demise of the human race. The devil had gained enough power to try a bid of escape.

To stop this from happening, Gabriel and his companions have to find a part of a four-piece key that, once put together, will stop the devil from escaping and ending the world. There are many friends and foes to watch out for during their travels and adventures.