A Tale of Two Cities

Jack, Kate, and Sawyer are prisoners of the mysterious "Others." After their captors drug them and take blood samples, they are held in separate areas. The camp leaders–Ben (Henry Gale), Mr. Friendly and a new woman, Juliet–try to make the castaways adjust to their new circumstances.

Flashbacks reveal more about Jack's past with his father and his wife Sarah.

Live Together, Die Alone (2)

After discovering something odd just offshore, Jack and Sayid come up with a plan to confront "The Others" and hopefully get Walt back. Meanwhile, Eko and Locke come to blows as Locke makes a potentially cataclysmic decision regarding the "button" and the hatch.

The Brig

After abandoning the Others, Locke takes Sawyer on a trek through the jungle to help him eliminate a common enemy. Meanwhile, back at the beach, the parachutist Naomi has crucial information about flight 815.

D.O.C.

Sun allows Juliet to examine her when she learns that all of "The Others" pregnant woman died before they gave birth on the island. Meanwhile, Desmond and an unlikely nemesis collaborate to save a new island inhabitant's life.