: A radical extremist group releases a lethal, fast-acting biological weapon during a high-profile diplomatic event.
"The Gettysburg Virus" is the premiere episode of the science fiction television series , which first aired on October 7, 1998. The episode establishes the show's core premise: a secret NSA project that can send one person seven days back in time to prevent national catastrophes. Episode Summary "Seven Days" The Gettysburg Virus(1998)
: The "Back-Step" sphere uses alien technology salvaged from the Roswell crash. It is limited to a seven-day jump due to power constraints and fuel (element 115). : A radical extremist group releases a lethal,