Master Fung announces that it is time for one of the Xiaolin Apprentices to rise to the Wudai Warrior level, but doesn't reveal who. The Apprentices get into a competition over who will pass, getting in the way of their hunt for the Ying Yoyo. Jack teams up with his past cohorts, while Chase Young puts into motion his plan to bring Omi to the Heylin...
Tropes
- The Bad Guy Wins: Chase Young successfully turns Omi to the Heylin Side after he rescues Master Fung, sending the world into a thousand years of darkness.
- Batman Gambit: Chase Young's plan was to switch the Ying Yoyo with a fake one, then trap Master Fung in the Ying-Yang World, and trick Omi into using the yoyo to free him, but lose his good chi. And it works.
- Conveniently Interrupted Document: The section of the Ancient Scroll of the Shen Gong Wu detailing the Ying Yoyo's full effects is missing.
- Downer Ending: And how! Omi has turned to the Heylin Side, Master Fung's in a meditative state, and the world has plunged into a thousand years of darkness.
- Face–Heel Turn: Omi turns to the Heylin Side after he leaves his good chi in the Ying-Yang World.
- Legion of Doom: Jack Spicer puts together a team consisting of Cyclops, Katnappe, Vlad, and Tubbimura.
- Red and Black and Evil All Over: To symbolize his turn to the Heylin Side, Omi's robes turn black and his sash turns red.
- Red Right Hand: Omi's forehead dots are tilted 45 degrees upon his turning evil.
- Replaced with Replica: While the Xiaolin monks are fighting Jack and his lackeys for the Ying Yoyo, Chase Young sneaks in and secretly replaces it with a toy replica that Jack later takes so he can use the Yoyo for his own scheme, which is to turn Omi to the Heylin Side.
- Robotic Torture Device: Jack’s Tickle-Bot.
- Tickle Torture: Tickle-Bot tortures Raimundo, Kimiko, and Clay by ticking them with several feathers.
- Villain Team-Up: Jack has convinced Tubbimura, Katnappe, Vlad, and Cyclops to work for him.
