Plot

When an incoming wormhole is established at the SGC, the iris is over-ridden and opened. A young boy appears and tells the SGC that they are in terrible danger from a group of terrorists. But these terrorists are invisible creatures and they are determined to wipe out all humans to prevent them being used as hosts to the Goa'uld.—Anonymous

Stargate Command is on full alert when an intruder manages to override their systems and travel through the gate. The traveler is a young boy who quickly bonds with Jack O'Neill and is named Charlie. The boy has been sent by his mother to warn them that a race unknown to them is out to destroy any beings that could be used by the Goa'uld as hosts. That of course includes everyone on Earth. The major challenge is that the enemy is invisible to humans and so they call on the Tok'ra, in the form of Sam Carter's father who is acting as a host, to assist them.—garykmcd

The SGC is surprised by the activation of the Stargate and a bald boy warns that Earth is in danger. He asks to talk only to Jack, since his invisible Mother tells him that he is reliable. He adopts Jack's son's name, Charlie, and tells them that he is from Reetalia where the inhabitants -Reetou- hate the Goual'd and want to defeat them. A group of rebels believes that if they destroy the earthlings, the Goual'd would lose probable hosts. Meanwhile, Dr. Fraiser discovers that Charlie is genetically engineered and he will die soon. The SGC summons the Tok'ra and they bring a weapon that can detect and destroy the Reetou. When they discover invisible Reetou rebels in the SGC, the battle begins.—Claudio Carvalho, Rio de Janeiro, Brazil

A mysterious young boy arrives through the gate at the SGC, warning of an impending attack on Earth by a new enemy. The Tok'ra are called upon to assist SG-1 in identifying and neutralizing this threat.