The Legends are still reeling from the news that their time travel-nemesis is a speedster when they are alerted to an Aberration in the Old West. When the Legends arrive…

Jack, Sawyer, Kate, Miles and Hurley, struggling to save Sayid, face an ancient secret. Meanwhile, a fake Lock exits the chamber to everyone’s awe.

A parallel universe, in which the crash never happened, is revealed as an aftermath of the bomb’s detonation. Meanwhile, Sawyer blames Jack for the loss of Juliet and the true…

Jack’s decision to put a plan in action in order to set things right on the island is met with some strong resistance by those close to him, and Locke…

Jack’s decision to put a plan in action in order to set things right on the island is met with some strong resistance by those close to him, and Locke…

To atone for sins of the past, Ben must attempt to summon the smoke monster in order to be judged.

After meeting old acquaintances Sawyer is forced to continue lying to protect them.

The members of Oceanic 6 discover how to get back to the island, but not all of them want to return.

Hurley and Sayid are on the run from the cops after stumbling into trouble at the safehouse; the island survivors come under attack by unknown forces; and an old friend…

As the face-off between the survivors and the freighter people continues, the Oceanic Six find themselves closer to rescue.

The face-off between the survivors and the freighter people continues, and the Oceanic Six find themselves closer to rescue.

Sayid goes back to the island to bring the rest of the people to the freighter. Ben, Locke, and Hurley go to another Dharma station in order to “move the…

Locke finds out where Jacob’s cabin is. Life on the freighter becomes dangerous.

Kate and Juliet must learn to work together when Jack’s health is seriously compromised, and something goes wrong as Sawyer, Claire, Aaron and Miles continue their trek away from Locke’s…

Sayid confronts Ben’s spy on the freighter, and Ben urges daughter Alex to flee Locke’s camp in order to survive an impending attack.

Juliet is forced to reveal some startling news to Jin when Sun threatens to move to Locke’s camp. Meanwhile, Sayid and Desmond begin to get an idea of the freighter’s…

Sayid and Desmond hit a bit of turbulence on the way to the freighter, which causes Desmond to experience some unexpected side effects.

Locke’s hostage may be the key to getting off the island, so Sayid and Kate go in search of their fellow castaway in an attempt to negotiate a peaceful deal.

The survivors begin to question the intentions of their supposed rescuers when four strangers arrive on the island.

Reid and Prentiss are taken hostage when they go under cover to investigate possible child abuse at an underground cult.