Stargate Atlantis - Season 2 Volume 1

2.1: THE SIEGE (Part 3) : Lt. Aiden Ford's quick recovery after encountering a Wraith leads Dr. Beckett to worry that Ford may have been infected with a Wraith enzyme. Meanwhile, the team's relief after surviving the Wraith's first assault on Atlantis is short-lived as the Wraith are planning the next wave of their onslaught. McKay devises a drastic plan, but time is running out.

2.2: THE INTRUDER: When a scientist is killed, McKay believes poor circuitry is at fault. However, when another scientist is killed, McKay suspects foul play. McKay is then alerted to a Wraith-encoded virus which quickly takes control of the ship's computer, and the crew becomes increasingly powerless. The team races against the clock to keep their ship from turning against them.

2.3: RUNNER: In their continuing search for the Wraith-infected Ford, the team encounters Ronon Dex, a fierce warrior who survived a battle with a Wraith and has been on the run ever since. Ronon reveals that he knows of Ford's whereabouts. Upon finding Ford, the team quickly realises they may never be able to save Ford from what he has become.

2.4: DUET: After being rescued from a Wraith Dart during a sudden attack, Dr. McKay and new team member Lieutenant Laura Cadman are trapped inside the transport equipment when the Dart crashes. Dr. Zalenka's attempt to materialise McKay is successful, but McKay finds he has an unexpected guest in his own body: Cadman's consciousness has been extracted with him and is inside his head!

Special Features:

• Audio Commentaries: 'The Siege Part 3' featuring Director Martin Wood, Writer Ma
• Featurettes: Mission Directive: 'The Siege Part 3' and Mission Directive: 'The I
• Production Design and Photo Gallery.