Let's see what I can remember.Claire wants to find out what happened to her while she was kidnapped. She, Kate & Rousseau go on a walk thru the jungle to jog her memory. She finds "the spot" which turns out to be another Dharma hatch. We just see the snippit of a door.
I don't recall much else.
TV guide says baby Aaron has a mysterious illness...and this is what prompts Claire's journey.