1969
A solar flare, sends the SG-1 team back in time to 1969,
ending up in a secret military facility.
General Hammond gave Carter a letter, and when she is searched
the letter's contents. cause amazement.
As the team are being transported for further interrogations, a young
officer helps them escape and tells them the letter must have been from
many years into the future.
Now the team must find the Stargate, so they can return to the present,
their colleague Catherine, may know its location.
Carter discovers that Hammond's letter
included the date of the next solar flare,
And now there is a race to locate Stargate and leave the past, or be stranded out of time.