When Jack's health is seriously compromised, Kate and Juliet must learn to work together in order to save him; and something goes wrong as Sawyer, Claire, Aaron and Miles continue their trek away from Locke's camp and back to the beach.
original airdate--May 01,2008 rating--11.14 million
music--"Main Title" (Composed by J.J. Abrams)
flashback: Jack Shephard
Trivia: The book which Jack is reading to a sleeping Aaron as a bedtime story in one of the flash-forwards is 'Alice's Adventures in Wonderland' by Lewis Carroll.