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.
Aku leads Jack to a graveyard where the dead begin to rise. An evil spirit takes over Jack's sword, leading Jack to defend himself against his own weapon. When Aku gets hold of the sword, Jack fears he's finally met his end.
Jack must travel along a water creature, a mountain creature and a flying creature to get to a portal to return home. But once he reaches the portal, it is guarded by an undefeatable warrior who tells him that this portal is not for him.