Note that there are Season 6-related news articles that could be considered spoilery at the bottom of this page, beneath the episode guide. Don’t scroll down that far unless you want to know.

Episode 6.01/6.02: LA X
Air Date: February 2, 2010
Written by Damon Lindelof & Carlton Cuse
Directed by Jack Bender
The aftermath from Juliet’s detonation of the hydrogen bomb is revealed.
[Recap] [Pre-Game] [Untangled] [Official Audio Podcast] [Season 1/Season 6 scene comparison]

Episode 6.03: What Kate Does
Air Date: February 9, 2010
Written by Edward Kitsis & Adam Horowitz
Directed by Paul Edwards
Kate finds herself on the run, while Jack is tasked with something that could endanger a friend’s life. Kate-centric.
[Recap] [Pre-Game]

Episode 6.04: The Substitute
Air Date: February 16, 2010
Written by Elizabeth Sarnoff & Melinda Hsu Taylor
Directed by Tucker Gates
Locke goes in search of help to further his cause. Locke-centric.

Episode 6.05: Lighthouse
Air Date: February 23, 2010
Written by unknown
Directed by Bobby Roth
Plot unknown. Jack-centric.

Episode 6.06: Sundown
Air Date: March 2, 2010
Written by unknown
Directed by unknown
Plot unknown. Sun-centric.

Episode 6.07: Dr. Linus
Air Date: March 9, 2010
Written by unknown
Directed by unknown
Plot unknown. Ben-centric.

Episode 6.08: Recon
Air Date: March 16, 2010
Written by unknown
Directed by unknown
Plot unknown. Sawyer-centric.

Episode 6.09: Ab Aeterno
Air Date: March 23, 2010
Written by unknown
Directed by unknown
Plot unknown. Rumored to be Richard-centric.

Episode 6.10: The Package
Air Date: March 30, 2010
Written by unknown
Directed by unknown
Plot unknown.

Episode 6.11: Happily Ever After
Air Date: April 6, 2010
Written by unknown
Directed by unknown
Plot unknown. Desmond-centric.

Episode 6.12: Everybody Loves Hugo
Air Date: April 13, 2010
Written by unknown
Directed by unknown Hurley-centric.
Plot unknown.

Episode 6.13: The Last Recruit
Air Date: April 20, 2010
Written by unknown
Directed by unknown
Plot unknown.

Episode 6.14: The Candidate
Air Date: April 27, 2010
Written by unknown
Directed by unknown
Plot unknown.

Episode 6.15
Air Date: May 4, 2010
Written by unknown
Directed by unknown
Plot unknown.

Episode 6.16
Air Date: May 11, 2010
Written by unknown
Directed by unknown
Plot unknown.

Episode 6.17/6.18
Air Date: Sunday, May 23, 2010
Written by Damon Lindelof & Carlton Cuse
Directed by Jack Bender
Plot unknown. Series finale.

Season 6 of Lost is set to premiere Tuesday, February 2, 2010, at 10:pm.

General Season 6:
[Full Comic-Con 2009 panel]
[General hints about Season 6 from Lindelof & Cuse]
[Season 6 to reveal characters' destinies]
[Matthew Fox reveals what he knows about episode 6.01]
[Josh Holloway talks Sawyer in Season 6]
[Jorge Garcia reacts to 6.01 script]
[Michael Emerson calls Season 6 "dark, bloody, opaque"]
[Season 6 may break for the Winter Olympics]
["The Final Season" poster decoded]
[No Season 6 footage to be shown prior to season premiere]
[Nestor Carbonell (Richard Alpert) made series regular for Season 6]
[Jeff Fahey (Frank Lapidus) made series regular for Season 6]
[Zuleikha Robinson (Ilana) made series regular for Season 6]
[Lost moves to Tuesdays at 9:pm for final season]
[Official Season 6 cast list revealed]

Theories:
Scroll to the bottom of these recaps to find the big theories.
[Robin's big Season 6 theory]
[Ben's Leadership of the Others]
[Jacob's Lists]
[Time Travel/Course Correction]
[Desmond in Season 6]
[The Origins of the Others]

Returning Characters:
[Is everybody dead returning to the show?]
[Emilie de Ravin back full-time as Claire Littleton]
[Elizabeth Mitchell returning as Juliet Burke -- but not full time]
[Ian Somerhalder returning as Boone Carlisle]
[Dominic Monaghan returning as Charlie Pace for 3 episodes]
[Adewale Akinnuoye-Agbaje wants to return as Mr. Eko]
[Sonya Walger's Penny Widmore uncertain for Season 6]
[Greg Grunberg may be back as Captain Seth Norris]
[Katey Sagal returning as Helen Norwood]
[M.C. Gainey returning as Tom]
[Kevin Durand returning as Martin Keamy]
[Titus Welliver returning as Jacob's nemesis]
[Alan Dale returning as Charles Widmore]
[Rebecca Mader returning as Charlotte Lewis]
[Fionnula Flanagan returning as Eloise Hawking]