SEASON: 4
SYNOPSIS
After a MALP goes out of remote control, even flying wild, an energy burst during an emergency Stargate shutdown causes serious damage in SGC, and wounds operator Sergeant Siler; Dr. Frasier keeps SG-1 down for check-ups. It soon becomes clear a 'computer program' has entered trough the wormhole, and is taking over the SGC computer network; even after Sam shuts it down, it reemerges, constantly requiring more memory. It not only 'nests' in a hardware constellation it creates, but even manages to take over Carter's brain, and communicates. It's a non-corporeal life form, whose entire home was damaged by a virus caused by the MALP radio waves, and believes its best survival chance is inside Sam, as the humans won't sacrifice her; true soldier Jack however decides to play hardball...