From the Introduction:
Once when the entire world was overburdened by the
increasing military power of demons in the form of
kings, mother earth assumed the shape of a cow and
approached Lord Brahma for relief. Sympathetic to
mother earth's lamentation, Brahma, accompanied by
Lord Siva and other demigods, took the cow-shaped
mother earth to the shore of the milk ocean, where he
offered prayers to please Lord Visnu, who lay there
on an island in transcendental ecstasy. Brahma thereafter
understood the advice of Maha-Visnu, who informed
him that He would appear on the surface of
the earth to mitigate the burden created by the demons.
The demigods, along with their wives, should
appear there as associates of Lord Krsna in the family
of Yadu to increase the sons and grandsons in that
dynasty. Brahma informed mother earth about all this,
and then he returned to his own abode….
Welcome to a world where gods and heroes walk the
earth. A time unprecedented in the earths history. It is
a time when the entire celestial host, from the heavenly
planets to the hellish realms, converged on earth
to battle for universal supremacy. The demonic forces
plotted for total control: incarnating in human forms
in the dynasties of kings so that they may rule the
world. Those who did not take a mortal form possessed
the hearts of wicked men on the battlefields
and inspired them into frenzies of iniquity. The Supreme
Personality of Godhead descended, with his
associates, to send them back into the darkness from
where they came and reinstate the true king of men to
his throne of virtue. In the process the principles of
religion were re-established and a new age dawned for
the people of earth.
It is on this stage that our heroes enter, descending
from the abodes of the devas, joining the forces of the
righteous to bring the malevolent to justice and grant
themselves a chance of total redemption.