I just watched it yesterday (I downloaded the torrent).

WOW. what a great episode. Great opening, I didn't know what was up until I heard the Thump. so glad I didn't read any spoilers. my wife and I think the magnet is the dude's protection against the nanotech. Any way. how did he get there? when did he get there? did he save Sarah's legs with some nanotech? what the heck?

this episode answered one big question (What is in the hatch?), but opened up a whole new batch of questions. This is going to be another great season.