
SG-1 encounters a potential new, technologically advanced ally in the war against the Goa’uld — though they do not know the Aschen’s dark secret.

SG-1 encounters a potential new, technologically advanced ally in the war against the Goa’uld — though they do not know the Aschen’s dark secret.

The Tollan offer Earth advanced weapons technology, prompting a secret investigation on Tollana — one that leads to a startling discovery.

SG-1 teams with a Russian unit when one of their Stargate teams goes missing in a mysterious alien ziggurat.

SG-1 discovers a civilization that uses Unas as slave labor, and attempt to liberate Daniel’s friend, Chaka.

Cassandra mysteriously falls ill, sending SG-1 back to her home planet — where they uncover a dark Goa’uld secret.