Watch "Season 5 Episode 16&17 ‘The Incident’"

Jack attempts to follow through with Daniel Faraday’s plan to detonate the hydrogen bomb after Faraday is killed, Locke instructs Alpert to take him to Jacob, and Sawyer is interrogated about an incriminating surveillance video.

Watch "Season 5 Episode 15 : ‘Follow The Leader’"

Faraday returns to the island and tells Jack that his mother, Eloise Hawking, lied to them–they don’t belong on the island. He then initiates a dangerous plan to get them back home.

Watch "Season 5 Episode 14 : ‘The Variable’"

Watch "Season 5 Episode 14 : ‘The Variable’ Trailer"

Watch "Season 5 Episode 13 : ‘Some Like It Hoth’"

Watch "Season 5 Episode 13 : ‘Some Like it Hoth’ Trailer"

Ben and Locke return to the island, where Ben says he is going to summon the Smoke “monster” and atone for his daughter’s death. In addition, the falling-out on the island between Ben and Charles Widmore is revealed.

Watch "Season 5 Episode 12 : ‘Dead Is Dead’"

Jack refuses to help save young Ben after Sayid shoots him, so Sawyer and Kate turn to Richard Alpert for help. Meanwhile, what Sawyer said to Kate on the chopper is revealed, as well as what Kate did with Aaron before the flight.

Watch "Season 5 Episode 11 : ‘ Whatever Happened, Happened’"

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.

Watch "Season 5 Episode 10 : ‘He’s Our You’"

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 "Season 5 Episode 9 : ‘Namaste’"

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.

Watch "Season 5 Episode 8 : ‘LaFleur’"

John Locke, now alive again and back on the island after the second plane crash, flashes back to his return to civilization, where he is brought in by Charles Widmore and asked to convince the Oceanic 6 to return to the island.

Watch "Season 5 Episode 7 : ‘The Life and Death of Jeremy Bentham’"