S2·E46 Time to Go Home

Lin Chung is blasted in a fire tornado by Twin Masters which sends him 1000 years in the past. In the past of Hidden Kingdom, it is revealed that Lin Chung was responsible for the rise of Twin Masters, as Twin Masters was once Prince Yang Tu, who wanted complete and total control of the Hidden Kingdom. Lin Chung tried to prevent Yang Tu from walking the path of evil. Unfortunately, instead of changing Yang Tu's fate, Lin Chung became the one that caused Yang Tu to become the Twin Masters we all know, Thus creating a time paradox.