"Late one night, exploring her father's library, a young woman finds an ancient book and a cache of yellowing letters. The letters are all addressed to "My dear and unfortunate successor," and they plunge her into a world she never dreamed of - a labyrinth where the secrets of her father's past and her mother's mysterious fate connect to an inconceivable evil hidden in the depths of history." "The letters provide links to one of the darkest powers...

Once a generation, a tournament is held between the champions of Outworld and Earthrealm. This tournament will determine the fate of the earth and all its citizens. Lord Raiden, protector of Earthrealm must gather the greatest fighters of his realm to defend it from the evil Shang Tsung in the battle to end all battles.

After the events of the first Mortal Kombat tournament, Liu Knag, Raiden, Johnny Cage, Sonya Blade, and Jack Briggs return home to find EarthRealm invaded by the forces of Outworld. The evil warlord Shao Kahn presents the heroes with an ultimatum; agree to a new Mortal Kombat tournament or face an all-out war with Outworld. Now the heroes, along with new allies Kung Lao and Stryker, must journey to Outworld and fight for the survival of Earthrealm...