Omi takes newcomer Ping Pong on as his protégé, but eventually grows jealous of Ping Pong when he becomes everyone’s favorite. This causes a rift between the Monks, further complicated by the arrival of a beautiful new candidate.
Willow and Ping Pong compete for the Xiaolin Apprentice top spot, as well as for Omi’s attention. Meanwhile, Kimiko grows suspicious of Willow’s motives.
When Willow uses her charms on all the boys in the temple, Kimiko becomes even more suspicious and she eventually discovers Willow’s secret double identity as Shadow. Meanwhile, Chase Young captures Ping Pong and takes revenge on Xiaolin, destroying the temple.
Dojo dreams about the mysterious dancing bunnies, which lead to the Golden Bunny—a mystical talisman hidden amongst the giant bunnies in an ancient citadel. The Monks must do what it takes to find and protect the sacred object, while keeping the giant bunnies at bay or they will mutate into beastly creatures and destroy the village.
Kimiko must save the day by going inside Digital Tokyo, a virtual world built by her father to battle a giant cyber worm.
Clay leads the Xiaolin Monks on a Wild West adventure, saving his Grandpappy’s cattle from being turned into a casualty of Jack’s latest evil scientific experiment.
Chase Young discovers a weak link in the ecological order that, if manipulated properly, will cause a domino effect of cataclysmic destruction. Meanwhile, Jack’s mishaps causes Chase’s evil plan to backfire.
Chase Young grows wary of Ping Pong’s power. To destroy him, Chase uses Ping Pong’s own mind as a trap, literally.
The heroes must escort the dangerous, slippery Salvador Cumo (a criminal that can turn into a humanoid Komodo Dragon) to prison. Along the journey, Raimundo winds up falling prey to Salvador’s charm and childhood stories which puts the Monks’ lives and mission at risk. Meanwhile, Wuya plans to recruit Salvador Cumo to her side.
Chase launches an attack on the Xiaolin monks, turning everyone except Omi into Cat Warriors. To save his friends, Omi must travel back in time to find Grand Master Dashi for advice.
Dojo learns about his true destiny. A new Shen-Gong-Wu sends the Xiaolin Warriors to the future to the Dragon Planet which is ruled by dragons. The Dragon Planet is where all humans are enslaved and Dojo is the King of Dragon Planet.
When Kimiko's older sister Tigress shows up on her birthday and one of the Shen Gong Wu mysteriously disappears, Kimiko tries to figure out if Tigress is on the side of good or evil.
Newbie Shoku Warrior Ping Pong duplicates himself with the Ring of Catsumi Shen Gong Wu, but becomes vulnerable to Chase’s evil plan when one of the Ping Pongs is captured and turned into Reptilian Ping Pong.
Jack uses the Hansu Mirror Shen Gong Wu on himself, turning from evil to good. Meanwhile, Dojo, feeling unappreciated, goes traveling to find his own place. He eventually joins up with Jack's new group of evil-turned-good guys, taking up thee name of New Jack.
Dojo's old friend, Rocco, shows up and they must work together to save the Xiaolin monks from zombification.
When the Mask of the Green Monkey surfaces, Omi ignores everyone’s advice and insists on going after the mysterious object.
The Monks discover that their new temple has a mystical talking tree, which seeks to stop all intruders, including the monks.
A new hero called Super Cow Patty has been beating down all the villains and getting the Shen Gong Wu before the warriors even get to them. After Clay loses to him in a showdown, It's revealed the new hero is Clay's little brother, Patrick, who sick of hearing all about Clay and wants to prove he's better.
Chase lays an egg after accidentally ingesting some poison Jack Spicer was going to use on Chase's cats. Jack and Omi team up for frienemyship and work to get the egg, thinking it's a Shen Gong Wu.
A new villain, the Weaselnator, uses his Prism of Genesis to created an army of weasels from bad drawings. He joins up with Jack to get the Rooster Booster, which will boost any Shen Gong Wu's power, leading to the Weaselnator ravaging the world with his giant weasels.
Christmas time comes and all the monks are excited, except Omi. Yet, the monks must save the spirit of the holiday from Jack Spicer, when he tries to make "Jackmas".
While preparing for Master Fung's return, Dojo accidentally shrinks Fung. It's up to the monks to travel to Chase's lair to save Master Fung's life.
Wuya and Jack hunt down two important Shen Gong Wu in order to restore Wuya to her human form. Meanwhile, Omi becomes jealous of Ping Pong when he beats Omi in a talent show, and Shadow abandons Chase.
Kimiko has strange visions about a dragon, and none of the other monks believe her. Meanwhile, Chase is getting closer to the Shanga World and the Xiaolin Chi.
With Chase having stolen the Xiaolin Chi, Kimiko travels to the Planet of Dragons while the Boys, accompanied by Jack, follow. Kimiko is given the chance to bond with a dragon, much to Omi's jealousy. Chase realizes he cannot access the Xiaolin Powers without the dragon spirits.
Chase Young, now empowered with Chi, begins to destroy the universe. Kimiko must work with a jealous Omi to awake the Cosmic Dragon to defeat Chase.