1. "Man of Science, Man of Faith"With the hatch successfully opened, Jack and Locke fight over what to do next. Locke and Kate decide to go in on their own and when both disappear down it, Jack has no choice but to follow. What's down there proves surprising and is linked with the good doctor's past.
First Aired: September 21st 2005
2. "Adrift"With the abduction of Walt fresh on their minds and their raft destroyed, Michael and Sawyer fight for their lives and discover a new predator in the roiling ocean. On land, we learn about the fates of Locke and Kate after they went down the hatch but before Jack's arrival.
First Aired: September 28th 2005
3. "Orientation"Jack, Locke and Kate learn more secrets about the hatch. Meanwhile, after being beaten and taken captive, Sawyer, Michael and Jin wonder if their captors are fellow survivors or the dreaded 'others'.
First Aired: October 5th 2005
4. "Everybody Hates Hugo"Disturbing memories from Hurley’s past cause him to struggle with a task he’s assigned inside the hatch. Meanwhile Sawyer, Michael and Jin discover the identities of their captors, and Claire uncovers a shocking piece of information about the fate of the raft.
First Aired: October 12th 2005
5. "...And Found"Michael sets off into the jungle by himself determined to find Walt, but discovers that he is not alone. Meanwhile, Sawyer and Jin are ordered by their captors to take them to their camp, and Sun frantically searches for her missing wedding ring.
First Aired: October 19th 2005
6. "Abandoned"Sawyer’s wound becomes life-threatening as he, Michael and Jin make their way through the interior of the island with the tail section survivors. Shannon is again haunted by visions of Walt, Charlie becomes jealous of Locke’s interest in Claire, and someone dies.
First Aired: November 9th 2005
7. "The Other 48 Days"The first 48 days in the lives of the tail section survivors are revealed. Landing on the other side of the island, danger hits when the 'others' start taking people. As the group moves inland things get worse when a member, who wasn't on the flight, starts betraying them.
First Aired: November 16th 2005
8. "Collision"Violence erupts when Ana-Lucia and her group stumble upon the other castaways. The survivors deal with the aftermath of yet another senseless death. Ana Lucia must decide what to do with Sayid, whilst coming to term with her own demons from her past.
First Aired: November 23rd 2005
9. "What Kate Did"Kate's original crime that started her life on the run is revealed. The survivors lay one of their own to rest, Kate sleeplessly watches over a feverish Sawyer, Mr. Eko has a surprise for Locke regarding the orientation reel, and Michael has a strange encounter.
First Aired: November 30th 2005
10. "The 23rd Psalm"Mr. Eko interrogates Charlie about the Virgin Mary statue, Claire begins to lose faith in Charlie when she discovers his secret, and Jack is an interested observer when Kate gives the recovering Sawyer a much-needed haircut.
First Aired: January 11th 2006
11. "The Hunting Party"Jack, Locke and Sawyer pursue a determined Michael after he heads into the jungle in search of Walt. Sun has a surprising reaction to Jin's desire to join the search party, and Hurley and Charlie commiserate over the age-old conundrum of "what women want".
First Aired: January 18th 2006
12. "Fire + Water"When Charlie's vividly surreal dreams lead him to believe Claire's baby, Aaron, is in danger, Locke suspects Charlie may be using again. Sawyer encourages Hurley to act on his attraction to Libby.
First Aired: January 25th 2006
13. "The Long Con"Survivors fear the 'others' may have returned when Sun is injured during a failed kidnapping attempt. Sawyer, who's history may be darker than we expected, is an amused bystander when tension escalates between Jack, Locke, Kate & Ana Lucia.
First Aired: February 8th 2006
14. "One of Them"When Rousseau leads Sayid to a captive in the jungle, he becomes determined to find out if he is one of the "Others." Sawyer discovers Hurley's potentially devastating breech of the survivors' trust and blackmails him into helping track an elusive creature.
First Aired: February 15th 2006
15. "Maternity Leave"A desperate Claire, along with Kate and Rousseau, attempt a return to the scene of her kidnapping where she believes she might find the cure for Baby Aaron's mysterious illness. Jack and Locke must keep their prisoner a secret from the rest of the survivors.
First Aired: March 1st 2006
16. "The Whole Truth"Sun wrestles with the thought of telling Jin a newfound secret that threatens to upset the entire balance of the survivors' community. Meanwhile, Locke enlists Ana-Lucia to interrogate the prisoner in order to extract more information than he, Jack or Sayid could.
First Aired: March 22nd 2006
17. "Lockdown"When the hatch suddenly takes on a life of its own, Locke is forced to enlist the help of an unlikely ally . Ana Lucia, Sayid and Charlie go off into the jungle to find out the truth about Henry. Jack and Sawyer up their stakes in a game of poker.
First Aired: March 29th 2006
18. "Dave"Libby lends Hurley support when he begins to think the island is having a strange effect on him, and Locke's sense of purpose is shaken when the prisoner provides new information about the hatch.
First Aired: April 5th 2006
19. "S.O.S."Rose is surprisingly and vehemently opposed to Bernard's plan to create an S.O.S. signal; romantic sparks are rekindled between Jack and Kate when they trek into the jungle to propose a "trade" with "The Others"; and Locke begins to question his faith in the island.
First Aired: April 12th 2006
20. "Two for the Road"Jack and Kate bring an exhausted Michael back to the camp, and with him, news about "The Others." Meanwhile, Ana Lucia attempts to get the prisoner to confess, and Hurley plans a surprise date for Libby.
First Aired: May 3rd 2006
21. "?"Recovering from his recent injury, Locke joins Eko in a search for the location marked by a "?" on the mysterious map. Their discovery reveals a startling secret about the island and the purpose of the hatch. The castaways deal with the aftermath of Henry's apparent escape.
First Aired: May 10th 2006
22. "Three Minutes"A determined Michael convinces Jack and several castaways to help him rescue Walt from "The Others". Jack must decide if he should believe Henry and not push the button. Meanwhile, Charlie struggles with Eko's decision to discontinue building the church.
First Aired: May 17th 2006
23. "Live Together, Die Alone"Two-Hour Season Finale. After discovering something odd just offshore, Jack and Sayid come up with a plan to confront "The Others" and hopefully get Walt back. Meanwhile, Eko and Locke come to blows as Locke makes a potentially cataclysmic decision regarding the "button" and the hatch. Lastly, Desmond returns and he sheds some more light on his experience on the island in the three years prior to when Locke came down into that hatch.
First Aired: May 24th 2006
