Season Seven
Doctor Felger creates a computer virus meant to disable Goa'uld-controlled worlds.
When the program malfunctions and spreads throughout the Stargate network, O'Neill, Teal'c and Daniel are trapped off-world, with danger looming around the corner.
It's up to Carter and the bumbling Felger to incapacitate the virus before the rest of SG-1 meet their doom.