Fans often note that Teyla is psychicly compromised or "taken over" in the 18th episode of every season up to this point.

The team explores a mobile geothermal drilling platform, hoping it can provide a new, nearly infinite power source for Atlantis.

This guide covers , the 18th episode of Stargate Atlantis Season 3. In this atmospheric, "underwater-themed" thriller, the team discovers an Ancient drilling facility deep beneath the Lantean ocean, only to find they aren't alone. Episode Overview

Sheppard and McKay use 10,000-year-old Ancient diving suits to reach the cruiser. Teyla uses a mental "counter-bluff" to trick the Queen into deactivating the self-destruct codes, allowing Sheppard and McKay to eliminate the Queen and save the city. Fun Facts & Trivia