Locke finds out where Jacob's cabin is; life on the freighter becomes dangerous.

The confrontation between the survivors and the freighter people begins.

The Oceanic Six find themselves closer to rescue as the confrontation between the survivors and the freighter people continues.

Juliet and Kate must work together to save Jack when his health is seriously compromised; something goes wrong as Sawyer, Claire, Miles and Aaron head back to the beach.

Sayid confronts Ben's spy aboard the freighter; Ben urges Alex to leave Locke's camp.

The Oceanic Six find themselves closer to rescue as the confrontation between the survivors and the freighter people continues.

Desmond experiences unexpected side effects when he and Sayid hit turbulence on the way to the freighter.

Jack's determination to formulate a plan of action is met with resistance from those close to him; Locke assigns Ben a difficult task.

Sawyer is forced to perpetuate his lie when some old friends drop in unannounced.

Juliet must reveal some surprising news to Jin when Sun threatens to move to Locke's camp; Desmond and Sayid meet the ship's captain and begin to get an idea of the freighter crew's mission.

Hurley and Sayid find themselves on the run after trouble at the safe house; unknown forces attack survivors left on the island; an old friend has shocking advice for Kate.

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

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

Ben must try to call the smoke monster to atone for sins of the past.

Those close to Jack resist his determination to formulate a plan of action; Locke assigns Ben a difficult task.

Sayid and Kate try to negotiate for Locke's hostage, whom they think might be the key to getting off the island.

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