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 10:

Sayid is held as a prisoner by the Dharma Initiative, presumed to be a Hostile. However, during his capture, he believes he has discovered the reason why he’s back on the island.

Recap of Episode 9:

Jack, Kate and Hurley wind up on the island in 1977, where they meet up with Sawyer and also join the Dharma Initiative. Meanwhile, Sun is stuck on the island in the present with Ben and the other passengers after the plane crash.

Watch Episode 10 of Lost:

Recap of Episode 8:

The survivors left on the island, now led by Sawyer after Locke’s departure, find themselves back in the 1970s, where they are now forced to become members of the Dharma Initiative.