Michael begins construction of the first raft. Walt runs away with Vincent. Locke helps Michael find him. They finally rescue him from a polar bear attack.
The Others prepare to perform surgery on Claire. Alex frees Claire from the Staff. Rousseau takes Claire to Locke and Boone.
"The Other 48 Days"
The tail section survivors discover the Arrow bunker. Inside they find a radio, a Bible and a glass eye.
Ana Lucia confronts Goodwin. He claims the kidnapped children are better off and admits to killing Nathan. He states that the (kidnapped) people on the list are good people, the rest are bad people. They fight and Goodwin is killed.
Locke and Boone bring Claire back to the Caves. The survivors discover she has amnesia.