It was really lovely episode - the storyline was great and the surprises they met with simple looking tasks.
The storyline was just great. All the matrix like virtual reality thing what looked so real and people inside did not knew it. I loved the wraith part and who she/he had made it so comfortable for herself and ruled that little game there. And McKey, when he started to hack the reality and modify it his way. Sad, they did not get any vital information but at least there is hope now - there is something out there. There is a change.