Phantasy Star IV, which takes place in the year AW 2284; 1,000 years after the events of Phantasy Star II, is the final part of the series canon. It is the story of Chaz Ashley, a young bounty hunter, who along with his friends and allies, is unwittingly catapulted into the role of savior of the Algol solar system. The computer network which has worked to sustain Algol has gone into disarray, leading to a series of catastrophes throughout the system. An investigation of the problem leads Rudy and his allies into a confrontation with the dark wizard Zio, whose aim seems to be nothing less than total annihilation. Defeating Zio proves to only be the beginning, and amidst great tragedy and struggle, Chaz and the others must eventually fight against an evil from time uncounted to restore peace to Algol once and for all.