Last episode of season 3:

Recap of episode 21:

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.

Recap of episode 20:

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.

Recap of episode 19:

Locke tells Sawyer that he needs to come with him to kill Ben. But the man Locke wants him to kill is actually his father–who also happens to be a figure from Sawyer’s past.

Recap of episode 18:

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.

Recap of episode 17:

Desmond’s latest vision suggests that his girlfriend Penny will crash-land onto the island. The vision also suggests that Charlie will die if he comes along with Desmond to rescue her, but Charlie must come along to make the vision come true.

Recap of episode 16:

Jack takes Juliet back to their camp after being abandoned by The Others. However, nobody else at the camp trusts her or wants her there, until she saves Claire’s life.

Recap of episode 14:

Nikki and Paulo are two more of the castaways with a past just like any of the others. What have they been doing since the plane crash?

Recap of episode 13:

Jack tells Kate that he has made a deal with The Others and is leaving via submarine tomorrow. But Locke blows up the submarine before Jack can leave, after having a long conversation with Ben about the island’s powers.

Recap of episode 12:

Claire launches a plan to use migratory birds to send a message, but she doesn’t understand why Desmond keeps sabotaging it. Elsewhere on the island, Sayid, Locke and Kate scale The Others’ protective perimeter and discover their camp.