While investigating the destruction of several scattered villages, Jack learns that Aku’s new “ultra-bots” are responsible. Unable to destroy them, he receives assistance from an unexpected source: their creator.

Jack is attacked by two monks, who he realizes are members of the order he once trained with. Their master informs Jack of an ancient temple that can send him home, but which is protected by an army of stone warriors.

A samurai warrior fights against the evil entity that took him away from his home world.

When Jack hears rumors of a time portal being found in the underwater city of Oceanus, Jack sets out to the city and is welcomed by its Triceraquins, but is unprepared for a terrible surprise.

Samurai Jack partners with a deadly assassin in order to escape a gargantuan creature that has swallowed them whole.

The source of Jack’s amnesia is discovered in three beautiful sirens, whose bewitching song can hypnotize the strongest warrior.

As he experiences summer, autumn, winter, and spring, Jack must overcome the dangerous foes he encounters during each season.

Recognized as a mighty warrior, Jack is guided to a mysterious portal capable of returning him to the past. However, he learns that only one man can use the portal: the man who defeats its unbeatable legendary Guardian. The Guardian defeats Jack but spares him, prophesying that Jack is not yet ready.

Jack looks for his sword and Ashi fends off attackers, including someone from her past.

A talented warrior named Ikra joins Jack as he seeks a magical jewel that could send him back to his own time. However, Ikra’s true motives threaten to derail his quest.

Jack survives a series of traps and encounters a Viking king transformed into a giant rock figure by Aku, who insists that Jack slay him in battle so that he can reach Valhalla.

Three short stories about some of Jack’s confrontations. He confronts a two-headed riddling worm, a family that feeds on metal, and a gargoyle who is imprisoning a fairy.

Seeking to weaken Jack’s popularity among his subjects, Aku gathers the children of the world in his palace and tells them a series of “fairy tales”, all of which portray himself as a hero and Jack as the villain.

When Aku catches a cold and spreads it to Jack, Jack is accidentally infected with Aku’s evil. Jack desperately seeks out a cure before Aku’s essence transforms him into the monstrosity himself.

Aku sends his servant Demongo, a demon who captures and enslaves the souls of warriors to serve him, to destroy Jack.

Aku summons the three immortal servants of Set to destroy Jack while he travels through Egypt. To destroy them, Jack must assemble a golden scarab using clues from his time as a young boy.

Aku challenges the Imakandi, regarded as the greatest hunters in the universe, to capture the ultimate prey: Jack.

Jack must chase a mysterious thief who stole his clothing while he was bathing, but things get complicated when his pursuit leads him into another world, whose denizens could gaze on his nudity.

Angered by the failure of his bounty hunters and mercenaries to defeat Jack, Aku uses the samurai’s inner darkness to create an evil clone whose sole purpose is to destroy him.

After Jack left with the mysterious figure Ashi goes on a quest to find him.

Jack rescues a baby from hungry ogres, but then trying to find the child’s mother while caring for it and protecting it may be his greatest challenge. During the episode, Jack retells the story of Momotaro to the baby.

Aku, an evil shape-shifting demon, devastates a young prince’s land in Medieval Japan, and his parents send him into exile. After years of intensive training, the prince receives a mystical sword and samurai’s robes, and frees his people from Aku’s minions. He then defeats Aku in battle, but before striking the final blow the latter […]

Jack meets a swamp hermit who guides him to the three gems of Cronus which can take him home, but the hermit is Aku in disguise.

Jack uses a stone giant to defeat Mondo-Bot to defend a city of robots.