Good episode. KatexSawyer on the docks was like ouch my heart. The last ten minutes or so was BAAAAAAADASSSSSSSSSS. I'm glad they're following up on that whole "infection" thing.
The preview for next weeks episode shows (SPOILER)Sawyer apparently (SPOILER)falling to his death. Which I hope isn't a cheap hype thing because I really think they should kill him on-island.