"lockdown" is about the discovery of an outbreak of disease which first occurred in the russian federation, but later on infects personnel of stargate command. the outbreak is later revealed to be the ethereal remains of anubis. at the same time, jack o'neill stops the recruiting process for sg-1 leaving samantha carter as the new leader of sg-1 throughout season 8. anubis tries to take new hosts but is eventually defeated and forced to a destination chosen by carter, a frozen, barren planet.