Show and Tell Stargate SG-1 : Season 2 Episode 20
TV-14 Syfy 44m int(0)
Aired: February 26th, 1999 @ 9:00 PM EST on Syfy
A young boy arrives through the Stargate, and warns of plot by invisible aliens to kill all of the human race in order to rob the Goa'uld of potential hosts.