Captain Black hires Jackie Chan to a secret government agency - Section 13, to track down the artifacts pursued by the Dark Hand, a crime organization far darker than anyone could have known. Also, Jackie's 11-year-old niece came to visit from Hong Kong and finds herself willing to help in the fight against evil. Jackie must gather up all 12 magical talismans that the Dark Hand had started retrieving before the Dark Hand does.

Jade swallowed the Rooster Talisman which gave her telekinetic powers, and Jade must harness this ""power within"" in order to save Jackie and herself.

Jackie and Jade have different goals after learning the Dark Hand members have stolen an endangered tortoise, which has the Rabbit talisman of super speed encrusted on its shell. And now, the Dark Hand must try to get it out, and Jackie must obtain the talisman and the tortoise before it becomes someone's dinner.

After having a fight with Shendu, Valmont keeps the Dragon Talisman of combustion for himself and not only busts into the U.S. Mint but puts Captain Black into the hospital as well. Valmont steals all the gold in the reserve, and Jackie must get the talisman, but this time, he has to use his brain to defeat Valmont because of Valmont's incredible powers.

Jade accidentally drops the Rat Talisman into the battery compartment of her Gnomekop toy, and it comes alive through the power of reanimation. The toy is grabbed by the Dark Hand and is used to get to Section 13. Jade and Jackie must track the toy down.

Jackie is poisoned by the Dark Hand and will give him the antidote for the talismans. Jade steals all the talismans, while the Dark Hand destroys the antidote. When Jackie fully turns to stone, the Horse Talisman heals him.

The Tiger Talisman splits the dark and light sides of Jackie in two, which makes it easy for Valmont to trick his dark side into working for the Dark Hand. The light Jackie could not do anything, he does not want to fight, while the dark Jackie steals the 12 talismans from Section 13. Both halves fight for the talisman, but Valmont gets to it first and uses it to turn Shendu into it's old self again, an alive, giant dragon demon.

Shendu retrieves all twelve talismans and transforms into a humanoid dragon. Now, he is on the loose and ready to destroy the entire continent of Asia. Jackie, Uncle, and Jade must find the demon and annihilate it before Asia is dismantled. Uncle makes a magic potion that allows Jackie to penetrate Shendu's skin to steal the twelve talismans back.

Jackie and Uncle try to study the marking on the statue of Lo Pei, the warrior who scattered the Talismans, hoping to find clues to the remaining ones. When Jade shatters the statue, she finds a way to repair the damage, and brings the ancient warrior to life.

The Dark Hand goes hunting for the legendary Pan'ku Box which will lead them to the eight Demon Portals. Knowing that the Dark Hand is too strong with the Talismans for Jackie and Uncle to handle alone, Jade recruits El Toro Fuerte and Viper, along with the reformed Tohru, to form the J-Team.

Shendu and the Dark Hand find a clue to the first gate that will enable him to release his sister, the Mountain Demon. Jackie goes to Japan to stop them, while Uncle begins to train his new apprentice, Tohru. Meanwhile Jade causes havoc with a duplication spell.

The Dark Hand allows themselves to be captured and sentenced to prison so they can open the Wind Demon's portal in Hollowlands Prison. Jackie must go undercover.

When her classmates get a tattoo, Jade decides to get one also. The design she chooses, however, comes from a magical book, which has unexpected consequences.

The Dark Hand must travel into space to free Tso Lan, the Moon Demon. Jackie and Jade travel along as stowaways on their stolen shuttle and must hold off the demon so Tohru can arrive on the reserve shuttle with the Chi Spell ingredients. With Uncle handling the incantations from NASA Mission Control, they must seal the Demon Sorcerer back in the void before he uses his gravity-manipulating powers to change the face of Earth forever.

Jackie is excavating some ancient armor when Uncle reveals it is the Armor of the Gods. This ancient suit of armor was worn by the Eight Immortals in their battles against the Demon Sorcerers. It proves quite convenient when the Dark Hand travels to Spain to find the portal of Dai Gui, the Earth Demon. However, sealing Dai Gui is complicated, as Jade used a sleeping potion on Uncle because of his constant complaining.

The Dark Hand seeks out the next Demon Portal at Fenway Park. Hsi Wu the Sky Demon, flies out of the Demon Netherworld but it's right in front of the girls bathroom door, and his tail snaps of as Jade tries to close the door. Hsi Wu disguises himself as one of Jade's classmates and they become friends. But once Hsi Wu learns that Uncle put a Chi Spell on his tail, an angered Jade uses some of the Talismans to confront him.

The Enforcers and Daolon Wong both break into Section 13 in search of the talismans. Uncle capture the Dark Chi warriors in a magical urn. Jackie destroys the talismans rather than allowing them to fall into the wrong hands. Doing so unleashes the powers of the talismans from their physical containers, sending the powers to reside inside the decendents of the 12 animals of the Zodiac. Dalon Wong later turns the Enforcers into his new Dark Chi Warriors. The first power that Jackie and team track is the power of Imortality, which leads them to a local dog show. Making off with the dogs before Daolon can harm them, the team encounters the new Enforcers/Dark Chi Warriors in the park. Jackie and company defeat the Dark Chi Enforcers and save the noble canine.

Valmont is transformed into a 10 yr. old kid by Daolon Wong after he angers the dark chi wizard during an encounter. Meanwhile, Jade who is feeling down about being small begins to mess around with magic to help her become a little taller. It backfires as Jade begins to grow at a dangerously rapid rate. Besides attempting to reacquire the power of the horse talisman before Daolon Wong gets it; Jackie, Uncle, and Tohru must now also deal with Jade's abnormal growth spurt and a rambunctious little Valmont.

Daolon Wong releases Shendu from his etheiral enprisonment in exchange for the talisman power of the Dragon - Combustion. Jackie, Uncle, Jade and Thoru attempt to stop Shendu's return to earth but fail. Shendu goes back on his deal w/ Dalon and absorbs the Dragon power for himself, and then drains Dalon of the tailsman powers he holds. Shendu persues Jackie back to Section 13 where the other talisman animals are. Before Shendu can absorb their powers, Jackie and Jade flee with the animals. Shendu stops Jackie and Jade at the zoo. Depsite Jackie's heroics, Shendu absorbs all of the talisman powers. Before Shendu can finally destroy Jackie, Uncle, Thoru and Section 13 arrive chanting a chi-spell (that Uncle got from Daolon Wong). The spell returns Shendu to his 'original' statue form and the talismans pop-out from his body. The talismans and Shendu are locked up in Section 13's vault for good.

Daolon Wong's failed attempt to escape from prison through the use of magic reawakens Tarakudo, the king of the shadowkahn who is bent on recovering all nine oni masks that imprison his generals. Tarakudo attempts to free himself and his minions so that they can unleash total darkness upon the earth.

Ratso obtains the next Oni mask and has summoned a new deadlier type of Shadowkahn with sharp metallic claws and razor pointed feet that appear to be unstoppable. Meanwhile, Uncle begins to doubt himself as believes he is no longer useful to the group because he is not well versed in Japanese legend and magic.

While attempting to stop the Enforcers from getting the fourth oni mask, it accidentally lands on Captain Black's face. He uses the powers of the mask to help him easily take down the Enforcers. Jackie and the rest of the group become worried when Captain Black becomes very intrigued and excited by his newfound abilities.

Captain Black's true good side is able to ward off the influence of the mask for a while, but the dark power of the oni begins to slowly corrupt and take hold of him. When the darker oni Captain Black finally emerges, he attempts to take advantage of his full access to Section 13. Jackie, Jade, Uncle, and Tohru race to work on a way to keep the other three stored masks away from Black as they search for the ingredient needed to perform a removal spell.

Paco tries on a mystical Oni mask in order to outdo Jade's scary costume on Halloween.

Ratso, Finn and Chow decide to become good guys, but they realize they're not much better at being good than bad!

Drago breaks out of Section 13 on a mission to absorb the demon chi that is held in the original artifacts used to defeat the demons so many years ago. He finds the Enforcers at a petting zoo and transforms them into dragon-human hybrids. Drago locates the fan that holds the chi of the Wind Demon. Meanwhile, Jade gets into the nasty habit of burping. Jackie and Captain Black hunt Drago down to a Chinese-themed car wash, where the fan is located. Unbeknownst to everyone, Jade absorbs the demon chi. At school, her burps create powerful wind storms, and she begins to transform into a frog. Drago attacks Jade at school in order to absorb the chi, but Uncle and Tohru arrive to capture it instead. Drago fires the Enforcers and turns them back into their old human selves after they prove that they are weak and useless.