History may never repeat itself again.
Ba'al travels back in time and prevents the Stargate program from being started. SG-1 must somehow restore history.
Colonel Cameron Mitchell
Colonel Samantha Carter
Teal'c
Dr. Daniel Jackson
Vala Mal Doran
Major General Hank Landry
Major General Jack O'Neill
Ba'al
Lieutenant General George Hammond
President Henry Hayes
1968
1995
2005
1996
1985
1987
1979
1997
1972
1999
2002
1951
1955
1977
1984
1990
2001
2014
2007
2008
2011
2009
2006
1976
2013
1935
2016
2010
1956
