Jack and a Swamp Wizard travel to the four corners of the earth, collecting pieces that are meant to get Jack home. But when Aku reveals himself to be the Swamp Wizard, Jack must battle the pieces that are now being controlled by Aku's evil hands.

When ancient gods try to destroy a powerful evil, they send one piece of the beast hurtling through space. This piece lands on earth, spreading its evil through the land. When it encroaches on an Emperor's realm, the Emporer takes it upon himself to destroy the evil, but ends up unleashing the evil that is Aku

Samurai Jack must read hieroglyphics, solve riddles and assemble a sacred scarab to call upon the sun god Ra for help in fighting evil, ancient Egyptian shadow warriors.

An overly friendly creature begins following Jack, ruining Jack's every move along his quest.

Jack must employ the aid of a water creature, a mountain creature and a flying creature to get to a portal to return home. However, once Jack reaches the portal, he discovers that it is guarded by an undefeatable warrior.

When Aku is reborn to set forth his reign of terror, the Emperor's son is sent off to learn the ways of the samurai. That boy becomes a man and attempts to slay Aku with a mighty sword, but Aku banishes him to the future.