The Timecops discover that they can't protect the history of the 21st Century Planet Earth by themselves when the 25th Century Enemies of the United Federation of Planets try to wipe out Humanity from the future!

Seeing his wife, Teyla, die at the hands of a Asrak killer in the SGC John leaves the military and goes on a life changing adventure, and lands 900,000 years into the future where he sees Teyla alive and well, with no memory of him, save for a dream.