2.04, Duet: Summary

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. Zelenka'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.

2.04, Duet: Cast