The Atlantis team travels to Dagan, a planet with a hidden ZPM and a mysterious trail that will lead to its hidden secret chamber location. But the Genii have learned of the Atlantis team's activities on Dagan. Realizing the ZPM must hold awesome power, the Genii plant a sleeper agent amongst the Daganians aiding the Atlantis team on their search. Now, as the Atlantis team closes in on the location of the ZPM, the Genii close in on them.
Spoilers ahead. Coverage follows the scope labeled below.
Complete story — includes the ending
The team searches for a Zero Point Module rumored to be hidden on the planet Dagan, an old Lantean outpost. The ancestors of the Daganians, the Sudarians, were entrusted with a ZPM some 10,000 years ago. In attempt to locate and excavate the ZPM, the team crosses paths with Kolya once more, but it's not the only thing to worry about when their new allies have motives of their own.