When Yin, Yang, their Dad Yo are having a family reunion, the city is attacked by a dark version of Yin, Yang, and Yo (Rin, Rang, and Ro). The three battle their evil copies and find that their duplicates are stronger versions of they are. Then after the battle, Yin finds a way to defeat them. It is revealed that the dark versions of themselves are complete opposites of their true personality, so Yang needs Yo to fight Dark Yang, Yo needs Yin to fight Dark Yo, and Yin needs Yang to fight Dark Yin. Can their plan work as planned??
===== Trivia =====
- This is the first episode after Yin and Yang find their father.
==== Chronology ====
Preceded by: Yin Yang Who
Followed by : Season 3