When Jade wanted to get a tattoo to be tough, and Jackie forbade the request, Jade creates a fake tattoo of an evil symbol. The Tattoo is non removable and she soon discovers she has the ability to control the Shadowkhan, which causes a strange and evil transformation in her as well. Shendu tries to reclaim his Shadowkhan clan while Jackie must remove the spell before it is too late for Jade. (thetvdb.com)