Millions of years ago, Shinnok, one of the Elder Gods, turned on his fellow deities and invaded the EarthRealm. Raiden and the other Elder Gods stopped Shinnok, locked him up in the Neatherrealm. Others followed in Shinnok's footsteps, like Outworld's emperor Shao Kahn who was obsessed with conquering EarthRealm. So Raiden convinced the Elder Gods to enact to Mortal Kombat tournament. As a way to even the odds. Give EarthRealm a chance. For generations, Shao Kahn followed the Elder God's rules. The war moved to the arena, where he sent his toughest fighters to challenge Raiden's greatest defenders to Mortal Kombat. 2 years ago we beat him. But Shao Kahn wasn't ready to lose. He violated the rules of Mortal Kombat and invaded EarthRealm. Most of Earth's defenders, our friends, were killed. Turned into evil undead warriors. Despite the odds we stopped Shao Kahn's invasion. His punishment- the Elder Gods destroyed him. We thought the long nightmare was over, but it turns out that Shinnok had been manipulating events. Shao Kahn's invasion, his death. All part of Shinnok's plan to escape the Neatherrealm and resume his war on the Elder Gods.