Seven Days

The President and Vice President were killed in a terrorist attack. Now it seems that a secret branch of the government has in their possession technology from the alien landing at Roswell, and they were able to use it to create a time machine that can send someone back in time seven days. And they would like to send someone back before this happened and tell what's going to happen before it does so they can prevent it. Now all they need is someone to send back, as the trip is excruciating. Frank Parker is an ex-Navy SEAL and CIA operative who has been confined to a mental hospital. He has been chosen as their "chrononaut" (or time traveler), as he has a high tolerance for pain, but at the same time he's a bit of a wildcard, as he doesn't like to be told what to do, or follow rules.

The President's briefcase containing the missile controls is lost on the streets of Washington D.C.

Atmospheric interference causes Parker to return from a back-step with a woman who died fifteen years ago, and whose presence threatens to unravel the fabric of the universe.