In ages past, a corrupt mage named Garm used a set of Runestones to summon a demon named Skorne. However, Skorne crushed Garm and imprisoned his soul in the Underworld. Skorne, fearing the power of the Runestones, scattered them throughout the four realms, so that they could never be used against him. The player(s) must defeat the end bosses of each of the four kingdoms to obtain the four keys which allow access to the desecrated temple and be able to banish Skorne to the Underworld. While traveling through each realm, he/she/they must also collect the Thirteen Runestones from where they have been scattered. The complete set of Runestones allows him/her/them to pursue Skorne to the Underworld in order to finally destroy him.