During a meeting of the Tok'ra High Council, one of the SGC soldiers goes berserk and attacks them before taking his own life. It soon becomes clear that the Goa'uld have a new weapon - a mind control technique that can turn anyone into a preprogrammed assassin. SGC soon realizes that Jack and Sam may be the next programmed assassins.

The Russians ask for assistance when they reveal they have the second Stargate, but it has become locked onto an alien water planet, not only preventing the SGC's Gate from functioning but endangering the Russian base.