In this final episode, the Atlantis team is contacted by Todd the Wraith, who reveals that a rogue underling has grown a "Super-Hive" ship powered by multiple Zero Point Modules (ZPMs). This invincible ship detects a signal from Earth and jumps to the Milky Way to attack.

: Detailed breakdowns of the episode's plot, including behind-the-scenes trivia and character exits, are available on IMDb and Wikipedia .

: The episode is dedicated to actor Don S. Davis (General George Hammond), who passed away shortly before filming.

: This was the 100th and final episode of the series.