Ep 12. Echoes

In the twelfth episode of Stargate Atlantis season three, entitled "Echoes," the team continues to explore the Pegasus Galaxy in search of new technologies and allies to aid them in their battle against the Wraith. The episode begins with Dr. McKay and his team discovering a highly unusual energy reading that has them all stumped. As they investigate further, they realize that the energy is coming from an unknown source deep within the planet's crust.

As the team tries to pinpoint the location of the energy source, they begin to experience strange and unsettling sensory phenomena - hearing voices and sounds that aren't there, feeling phantom touches, and even seeing apparitions that seem to vanish as soon as they appear. Soon, they realize that they are not alone on the planet and that there may be some kind of hostile life form that is responsible for the strange occurrences.

As the team attempts to regroup and formulate a plan, they are suddenly caught in the midst of a violent earthquake that separates them all. McKay is trapped alone in a research facility, separated from his team and with no way to communicate or escape. Desperately trying to fend off his increasing sense of panic, McKay must use all his scientific expertise to investigate the strange energy source and try to find a way to escape.

Meanwhile, Sheppard and the rest of the team are trying to mount a rescue mission in the midst of the constantly shifting and dangerous terrain. Their attempts to find and rescue McKay are complicated by the continued occurrences of strange and unsettling sensory phenomena, which seem to be increasing in intensity and frequency.

As the episode progresses, the team must navigate treacherous obstacles and face unexpected challenges as they attempt to locate and rescue McKay and uncover the truth behind the strange energy source and apparitions. Along the way, they learn more about their own fears and vulnerabilities as they face the very real possibility of being trapped and lost on the planet forever.

Overall, Stargate Atlantis season three episode 12 "Echoes" is a tense and suspenseful episode that explores themes of isolation, fear, and the unknown. With some truly eerie and unsettling moments, the episode keeps viewers on the edge of their seats as they join the team in their struggle to survive and escape from a hostile and mysterious world.