Synopsis by Hal Erickson
Even the powerful Asgard are unable to prevent an onslaught of deadly metallic replicator bugs. In his efforts to prevent the bugs from invading earth, O'Neill (Richard Dean Anderson) must destroy Thor's vessel, the Beliskner--and, possibly, himself as well. Against his explicit orders, O'Neill's SG-1 team joins their leader in his suicidal mission. This final episode of Stargate SG-1's third season ends with the traditional cliffhanger, which of course would not be resolved until the beginning of Season Four.