Kung Lao has triumphed in the Mortal Kombat tournament, defeating Shang Tsung and saving Earth Realm. Now, he must train a new generation of warriors for the next tournament. Meanwhile, an exiled Shang Tsung attempts to thwart Lao's efforts with the aid of supernatural warriors such as Scorpion and Sub-Zero.
A traveling circus arrives in Zhu Zin with Qali among it. Kung Lao, Taja and Siro suspect something is wrong and they're right. The circus turns out to be a way for Quan Chi to raise an army.
Shao Kahn partners two bitter enemies, Sub-Zero and Scorpion, to destroy Kung Lao.
Empress Kreeya arrives on Earth Realm to build up an army. Her target: Outworld. Vorpax, revealed to be working for Kreeya, invites Kung Lao, Taja and Siro to join them.
Long ago, Master Cho was betrayed by Shang Tsung so he could fight for Shao Kahn. Now, Shang Tsung loose on Earth Realm, Master Cho intends to settle the score.
Kreeya has returned and is now teamed up with Reptile.
Shao Kahn enlists Quan Chi to find the missing Shang Tsung and return him to the Cobalt Mines.
