When a secret base abandoned by the ancients (the original Stargate builders) is found buried in the ice of Antarctica, the Atlantis team is recruited for the most daring Stargate mission yet: a one-way expedition to the distant Pegasus galaxy and discover an advanced but deserted city on the ocean floor and encounter the Wraith, a sinister new enemy that threats human life everywhere.
The new team of explorers is head by John Sheppard and Dr. Elizabeth Weir. Rounding out the team are Lt. Aiden Ford, Teyla and Dr. Rodney McKay
