As Earth's sworn protector, Rayden finds himself banished in the merger between
Earth and Outworld. When the Elder Gods refuse to assist him in aiding the Earth,
he is forced to take matters into his own hands. He transforms himself into a mortal
warrior to fight alongside his human comrades -- this time risking his place in the
pantheon of gods and giving up his own immortality.
When Outworld and Earth merge, Rayden finds himself battling Shao Kahn without
the assistance of the Elder Gods. The Thunder God must transform into a mortal in
order to exist in the combined realms. When he does this, he puts his own
immortality at risk. But Rayden has always found ways of fouling Kahn's plots. He
guides the chosen Earth warriors into a battle against the Outworld emperor's
armies, then finally faces Kahn himself. The powerful beings fight until the very
core of the Earth is shaken and Rayden emerges victorious.