Survivors wonder why Charlie and a pregnant Claire have been abducted - and by whom - and a search party ventures into the treacherous jungle to try to find and rescue the missing duo, but they suspect it was Ethan Rom that abducted the two somehow, who was recently discovered to not being a passneger on the plane that crash.

Meanwhile, inner-demons about his father resurface for Jack, and Boone and Locke discover another island mystery.

original airdate--December 8,2004        rating--18.88 million

song--"Main Title" (Composed by J.J. Abrams)

1. "Charlie Hangs Around" by Michael Giacchino

Flashback: Jack Shephard

1. Jack in the OR, attempting to resuscitate a female patient.
2. to the OR again, as he looks over the dead patient's body.
3. with Jack's father, encourages his son to sign off on the death report, which conveniently leaves out his father's mistakes.
4. to the hospital, where Jack sees his father conversing with the deceased woman's husband in the hallway.
5. to a medical review board, where Jack's father details what happened during the fateful surgery.