Latona, a forested world with modern cities, has a peaceful, technologically regressed, egalitarian society. For 300 years the inhabitants had been protected by the Sentinel, an advanced defensive device built by their ancestors, which had left them free to pursue matters of the mind and spirit. Knowledge of their own technology was lost over the years, and when interference from rogue NID operatives disabled the Sentinel, the planet became vulnerable to attack by the Goa'uld Svarog. SG-1 returned to Latona to restore the Sentinel defenses and defeat Svarog's forces.
Episode Reference: The Sentinel