Season Two Episode Thirteen: At a library, Jackie locates a Demon Archive that Uncle promises will put an end to the demon portals. Suddenly, Shadowkhan surround him. As the Enforcers arrive and attempt to tip over the ladder Jackie is on. The martial arts master manages to escape through the window with a curtain as a makeshift parachute, leaving the Enforcers to the mercy of the Shadowkhan. Meanwhile, Jade and other students are observing a crossbones tattoo on Drew's arm, which influences Jade into desiring a tattoo of her own. Jackie refuses to let her have one, then Jade finds the symbol of the archive on the cover. She uses a pen to trace it onto a paper, then get it wet and place it low onto her leg. The next day, the students at Jade's school are even more impressed at Jade's tattoo, while Drew had his tattoo erased, revealing it was a fake.
At the Dark Hand hideout, Valmont vocalizes his displeasure at wearing a "dress", which Shendu corrects as a "sorceror's robe". The Enforcers beg to differ. Shendu ignores that and demands to know where his archive is. When the Enforcers explain that the Shadowkhan's involvement, Shendu feels insulted, as they are his puppets. He orders the Enforcers to reclaim the archive from the Chans. The Enforcers aren't feeling up to it, as they get beaten every time. However, Hak Foo (who had been listening the entire time) volunteers to join.
Jade returns home and walks in wearing snow boots. A curious Jackie is eventually able to uncover the tattoo (despite Jade's trying to distract him) and demands that Jade wash it off, only to learn that that it can't be removed by merely washing it off (as her efforts to do that at school failed). Uncle reacts with horror upon seeing the tattoo. He says that they must destroy the tattoo before it brings unspeakable horrors.
Valmont's henchmen return trying to steal the archive, with Jade the only one left to protect it. She then runs to an alleyway, taking the archive with her, and is cornered there by Hak Foo. She screams for help, and the Shadowkhan then appear; using their punches and kicks, they drive Hak Foo away.
Hak Foo tries explaining to his colleagues that it was the Shadowkhan who had beaten him, but no one believes him. Shendu attempts to prove it by summoning them but nothing happens; Valmont comments that he may have lost his touch. Shendu figures that Jackie is using the archive against him and demands that the Enforcers get the book by any means necessary.
The next morning, while Jade is brushing her teeth, she wishes for breakfast. Then after looking in the mirror and finding that the Shadowkhan have appeared behind her, she screams, thinking they want to destroy her. However, they actually offer her breakfast (orange juice, toast, cereal) and then hide above Jackie who is suspicious that Jade is dressed in black, which Jade dismisses it as being "in a dark mood".
At school, Drew agitates Jade when she claims she has gnarly ninjas, but she orders the Shadowkhan not to attack Drew when they were about to do so as the bell rings. Then, the Dark Hand steal the archive by digging underground while distracting Uncle with one of the henchmen dressed as an old man. Jade sees the Dark Hand with the archive after Jackie, Tohru, and Uncle realize it was missing. Tohru's weight then causes a hole in the floor. Jade orders the Shadowkhan to spank them, and they do so by pulling down the Dark Hands' pants and spanking them. Jackie halts Jade's commands to attack, and thus the Dark Hand retreat in their car. Jade's skin is turning more blue as observed by Jackie.
Jade requests that she be allowed to keep the Shadowkhan, right when Uncle pulls out a potion that would make Jade's tattoo disappear. However, Jade refuses to let it happen and becomes an evil devil, declaring herself as Queen of the Shadowkhan. Jackie's decision to ground her proves futile when she and the Shadowkhan disappear, taking over Section 13 after putting Black and the other Section 13 workers in a prison cell. Jade is unable to understand what the words on the Archive say, so she orders the Shadowkhan to bring in Shendu/Valmont to translate it. Shendu states that he could teach Jade the language of reading the archive, but she does not believe she can trust him. Jackie is dressed up as a Shadowkhan and is trying to erase Jade's tattoo, but is forced to fight the Shadowkhan and Jade demands they take the potion away from him. Jackie makes all effort to retrieve the potion but the vial smashes. Held captive, Jackie tries reasoning with Jade. He then points out that Shendu trying to steal the Archive. Jade realizes that Jackie is right and sends the Shadowkhan after Shendu. Tohru, disguised as a Shadowkhan, appears behind Jade and splashes an extra potion onto Jade's tattoo, which starts erasing Jade's devil behavior. Shendu orders the Shadowkhan to destroy Jackie, before Jade orders them to destroy the book instead (which one of them does, much to Shendu's dismay). Valmont is kicked out of Section 13 who complains to Shendu that they missed the opportunity to collect the Talismans.
Everything then returns to normal. Jade says she has a weird feeling that she did something bad, but Jackie congratulates her for having destroyed the archive and solving the entire problem about the book's fate.