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.
The Samurai lands in the future and is named Jack. He is enlisted by a race of dogs to destroy Aku.
Jack gets weapons and beats back Aku's army of beetles saving the canine race.
Jack helps free the Woolies from the tyrannical Chritchellites.
When Jack mistakenly destroys a group of scientists' chance to escape Aku, he and the scientists join forces to try and fix the problem, hopefully returning Jack home as well.
Aku morphs himself into a woman in order to keep Jack from returning to the past to destroy him.
Jack must get past three blind archers to reach an all-powerful wishing well.
Jack meets up with Mad Jack and must battle his darker self.
Jack has an underwater adventure with a jelly-whale and sea monkeys while hunting for an ancient time portal.
Jack goes through a cave full of challenges only to find an old warrior longing to reach Valhalla.
When Jack and a Scotsman meet on a never-ending bridge, they end up shackled together and on the run from bounty hunters.
Jack hooks up with some Chicago gangsters to try and get close to Aku.
Aku tells fairy tales to the children to try and win them over to his side instead of Jack's.
An over-friendly creature begins following Jack, messing up Jack's every move along his quest.
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 these pieces which are now being puppeteered by Aku's evil hands.
When Jack enters a spooky, old mansion and gets locked inside, he catches sight of a figure and sets after it to find out what is going on. As Jack is led further and further in, he discovers that the house and its inhabitants have an evil plan that involves…him.
Jack falls into a hidden temple sanctuary to find monks trained like him in the style of the Ancient Master. The Ancient Master's Son then tells Jack of a portal to send him home, but in order to use it, his new friends must be sacrificed.
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