A giant energy manufacturing company known as Shinra Inc. is harvesting the sheer life energy of the Planet as a simple fossil fuel. Processed and made into products known as Mako and Materia, these materials can work miracles, granting the wisdom of the Ancients to the user. However, this substance, like all other fuels, is finite in supply, and the Planet's lifeforce is being malevolently drained by the constant explotation of Mako by Shinra. Though aware of the harmful effects, they function without remorse.
However, the real battle lies not with a corporation, but a force much more competent from the distant past. A long-thought dead warrior bent on becoming more and more powerful, coupled with the Planet's drained energy, threatens the very existence of everything sacred.
Now a small rebel group emanating from the slums must quell the various dangers toward the innocent, and one mercenary for hire must look amidst the lies and deception and find the man he is within.