Sayid's attempt to rescue Jack, Kate, and Sawyer from the others jeopardizes Sun and Jin's lives. Ben makes Jack an offer which may be too hard to refuse.
Sawyer and Kate struggle to escape the island while Jack sabotages Ben's surgery. Juliet's deal with Jack to kill Ben on the operating table is exposed.
After Desmond saves Claire from drowning, Charlie and Hurley suspect that he can see the future, so they come up with a plan to get some answers out of him.
Having returned to camp, Sawyer's help is enlisted by Hugo, who has an obsession with retrieving an old VW van found on the island. More events in Hugo's life are also revealed, showing what brought him to be on the doomed flight.
Claire launches a plan to use migratory birds to send a message, but Desmond keeps sabotaging it. Sayid, Locke, and Kate scale The Others' protective perimeter and discover their camp.
With their secret location now compromised, The Others abandon camp and take Locke with them. But they also leave Juliet behind, handcuffed to Kate in the middle of the jungle.
An unlikely person helps Desmond save the life of the mysterious woman who crashed onto the island, and Juliet helps Sun find out whether she conceived on the island or before the plane crash.
Locke needs to prove himself to Ben before he can be accepted into the Others' group and tricks Sawyer into doing his dirty work for him. The secret of the woman who parachuted onto the Island is revealed.
As Ben takes Locke to see Jacob and reveal the island's secrets, Ben's background on the island is exposed--as well as what happened to the Dharma Initiative.
Desmond has another vision of Charlie's death, but this time his death ultimately will result in Claire's rescue. Meanwhile, the survivors discover that an attack by the others is even more imminent than originally expected.
Jack and the survivors wait for Charlie to turn off The Others' signal-jamming device, not knowing that he has been captured at the Looking Glass station.
On the island, Jack and the survivors come closer to finding rescue. In the flashback, Jack is shown in Los Angeles, living though a meaningless existence as a drunkard.
