Gaia - Mother Earth - is dying. Ravaged by mankind's endless hunger, she is losing the struggle against the Wyrm, a cosmic force of decay and destruction. Made manifest in the corporation Endron, the servants of the Wyrm stand poised to feast on the corpse of nature herself. The Wyrm, a corrupting entity, is winning the war against Gaia, Mother Earth. Pentex, a multinational corporation that serves the Wyrm, is controlling the world through its subsidiaries. A former protector of Gaia, born under a full moon, and proud werewolf Warrior of the Fianna Tribe. However, after losing control of his devastating rage, Cahal chose a life of exile. Years later, while searching for his missing daughter. Cahal discovers that his old pack is in danger, and he must come to its aid.