After restoring the four Crystals of Light, the Warriors of Light continue to unravel Xande's quest to conquer the world from the summit of the Crystal Tower. But to stop him, they need the sealed powers in the Forbidden Land of Eureka. Doga and Unei hold the keys to the two seals, and so our heroes must take on the challenge set by the two great wizards.
The four release the seal on Eureka and obtain their ultimate powers, as well as the weapons that once drove back the Flood of Light a millennium ago. With these, the Warriors of Light set forth to confront Xande before an even greater threat emerges.