When Major Samantha Carter is abducted by mysterious men in black, General Hammond authorizes the rest of SG-1 to go and find her. They need the help of Maybourne the ex-airforce colonel who sold information about the SGC to the Russians. Turns out Maybourne has sold a Goa'uld larva to a rich and powerful private individual. The Russian had captured a Jaffa warrior on their second mission which is where the larva came from, and some renegade Russian soldiers sold it to Maybourne. The man who buys the Gao'uld is dying and wants to use the healing properties of it to save himself which is why they capture Sam so they can see how she survived Jolinar. Maybourne helps them to track Major Carter to a hospital where dangerous experiments are being conducted, but things have moved along and the Goa'uld is implanted in the sick man. With the Goa'uld in charge he escapes, Jack finds him but he escapes again when someone shoots Jack in the back.