The Visitor from the Future

Hoping to alter the events of the past, a 19th-century inventor instead travels 800,000 years into the future, where he finds mankind divided into two warring races.

When Alita awakens with no memory of who she is in a future world she does not recognize, she is taken in by Ido, a compassionate doctor who realizes that somewhere in this abandoned cyborg shell is the heart and soul of a young woman with an extraordinary past.

A young boy learns that he has extraordinary powers and is not of this earth. As a young man, he journeys to discover where he came from and what he was sent here to do. But the hero in him must emerge if he is to save the world from annihilation and become the symbol of hope for all mankind.

Ba'al travels back in time and prevents the Stargate program from being started. SG-1 must somehow restore history.