The Beginning of the End
The survivors split into two camps over whether to trust the freighter people.
Confirmed Dead
The freighter team arrives: a physicist, an anthropologist, a ghostbuster, and a mercenary.
The Economist
Sayid makes a deal with Locke. His future off the Island is revealed.
Eggtown
Kate goes on trial in the future. Locke's leadership of the Barracks is tested.
The Constant
Desmond experiences something extraordinary while traveling to the freighter. Widely considered the best episode of the series.
The Other Woman
Juliet receives a message from Ben. Daniel and Charlotte head to the Tempest station.
Ji Yeon
Sun and Jin's stories are told in parallel. A twist in the timeline.
Meet Kevin Johnson
The identity of Ben's spy on the freighter is revealed. His journey there is explained.
The Shape of Things to Come
The mercenaries attack the Barracks. Ben's off-Island activities are revealed.
Something Nice Back Home
Jack needs emergency surgery on the Island. His future with Kate is shown.
Cabin Fever
Locke seeks instructions from Jacob's cabin. Locke's destiny is shown from birth.
There's No Place Like Home (Part 1)
The Oceanic Six prepare to leave. The cover story is established.
There's No Place Like Home (Part 2)
The Season 4 finale. The Island is moved. The Oceanic Six escape.
There's No Place Like Home (Part 3)
The finale's final revelation. Jeremy Bentham is identified.