MK4:
Thousands of years ago in a battle with the fallen elder god known as Shinnok, I was responsible for the death of an entire civilization.
To rid all realms of Shinnok's menace I waged a war that plunged the earth into centuries of darkness and banished Shinnok to a place called the Netherealm.
Now after Shao Kahn's defeat at the hands of the earth warriors, Shinnok has managed to escape his confines of the Netherealm.
The war is now being fought once again, and this time it can be won by mortals.
- The Words of Raiden
MKDA:
Mortal Kombat has always been, and always will be...
For millennia, the forces of good and evil have been locked in eternal battle over the control of Earthrealm.
Some seek to use the tournament to destroy all that is good.
Others seek vengeance, power, or eternal life.
Time after time each individual threat has been vanquished, and Earthrealm has enjoyed relative peace for many years.
But there is concern that Earth is once again in peril.
And this time, the threat of evil has two faces...


It is now known that the sorcerer Quan Chi has escaped from the Netherealm.
Since his escape, Quan Chi has unlocked the secret of the ancient Rune Stone, discovered the ancient undefeatable army of the long forgotten Dragon King, ... and most disturbing of all, formed an alliance with one of our deadliest enemies...Shang Tsung.
With their combined strength, they plotted to overpower the only two beings who could prevent their total domination of our two realms.
The first was the Emperor of Outworld, Shao Kahn.
In a false show of allegiance to Shao Kahn, they sprung their attack...
They then travled to Earthrealm by way of a mystical portal known only to sorcerers and deities.
There they confronted Earth's mightiest warrior and Champion of Mortal Kombat, Liu Kang.
"It has been Shang Tsung's greatest desire to consume the soul of Earthrealm's greatest warrior."
With Quan Chi's assistance, he achieved this goal...
Liu Kang is dead.
They have since returned to Outworld and are using the souls of conquered warriors to resurrect the Dragon King's undefeatable army.
Should they succeed, they will have the means to conquer Outworld...and eventually Earthrealm.
They will be unstoppable.


I can no longer stand idly by and watch this evil consume the world.
I have relinquished my status of Elder God to return to Earth and lead you all to battle against our old adversaries.
We must act now.
We must stop this Deadly Alliance!

(These are the words of Raiden)
MKD:Long before Liu Kang had won the Mortal Kombat tournament in Earhtrealm, Shujinko had begun his quest to retrieve the Kamidogu for the Elder Gods...

Now an ancient evil has returned from beyond death...and threatens the very existence of the realms.

Will the champion of the elder gods have the power to defeat this threat borne of deception? Hope that's what u meant.

You can try WikiPedia.Org and type in Mortal Kombat. It might help you out and get you up to speed on what happened.

Try the MK plot FAQ at Gamefaqs.

http://db.gamefaqs.com/coinop/arcade/file/mortal_kombat_plot.txt



Ka-Tra