Many years have passed since the world war inflicted catastrophic damage on the human race, leaving only a few survivors. In their new community "Cocoon," life has been threatened by a black material called Erosion, creating a post-apocalyptic environment. Surviving humans recruit a militia to conquer the Erosion and set out to take down the evil, "Living Tower". Arriving at the scene is the stalwart warrior Syd, whose only intentions are to destroy the Tower. He meets the beautiful and mysterious Fillena as they both ascend to the top in their search for answers. The erosion of the Tower intensifies as the players climb up through the moving landform.