Achilles, a normal man infected with a disease that will bring down the Erebus rulers (human/machine hybrids) escapes back in time from 2410 to the present day where he has a chance to stop the Erebus from ever rising to power. However he is followed by the Erebus-7 who will stop at nothing to hunt him down.

2410년에서 현재의 지구로 돌아온 시간여행자 아킬레스는 인류를 파멸시키려 하는 바이오 머신 에레보스 7을 상대로 지구를 지키고자 한다. 아킬레스와 가장 먼저 만난 지구인 바이런과 캐시는 아킬레스를 도와 에레보스 7과의 싸움을 이어나간다. 하지만 에레보스는 쉽사리 포기하지 않고 아킬레스를 맹렬히 추격하는데… 과연 그는 지구를 지킬 수 있을 것인가?

อคิลลิส ชายธรรมดาคนหนึ่งที่ติดเชื้อโรคที่โค่นล้มผู้ปกครองเอเรบัส (ลูกผสมระหว่างมนุษย์และเครื่องจักร) ได้หลบหนีย้อนเวลากลับไปตั้งแต่ปี 2410 จนถึงปัจจุบัน ซึ่งเขาได้มีโอกาสหยุดยั้งไม่ให้เอเรบัสขึ้นสู่อำนาจ อย่างไรก็ตาม เอเรบัส-7 ก็ตามล่าเขาจนสำเร็จ