People of P4A-771

During a recon mission on P4A-771, SG-1 team is taken under fire and surrounded by unknown enemy forces, probably Goa'uld according to Teal'c. Forced to come back by the Stargate, they all engage through the wormhole but an enemy blast shoots the Stargate which overloads.

They have advanced technology and guard the Stargate. Stargate.