Watch All Lost TV Seasons Online

Lost is an American serial drama television series that follows the lives of plane crash survivors on a mysterious tropical island, after a commercial passenger jet flying between Sydney, Australia and Los Angeles, United States crashes somewhere in the South Pacific. Each episode typically features a primary storyline on the island as well as a secondary storyline from another point in a character's life.

• Season 1
• Season 2
• Season 3
• Season 4

Watch Lost Season 4

The show runners have said that the freighter crew is "a lot worse" than the Others. Other areas that will be explored include what happened between Ben and the real Henry Gale, how Ben was caught in Rousseau's trap (on the survivors' fifty-eighth day), the four-toed statue, what happened in the hatch during its implosion, who was in the coffin, what happened to Dr. Marvin Candle's arm, how Libby wound up in the mental institution, what happened to Ben's childhood friend Annie, and the real explaination for why Oceanic 815 was in the bottom of Sunda Trench.

Episode 0 - Past, Present and Future
Episode 1 - The Beginning of the End
Episode 2 - Confirmed Dead
Episode 3 - The Economist
Episode 4 - Eggtown
Episode 5 - The Constant
Episode 6 - The Other Woman
Episode 7 - Ji Yeon
Episode 8 - Meet Kevin Johnson
Episode 9 - The Shape of Things to Come (airing April 24, 2008)

Watch Lost Season 3

Season three continues the story 67 days after the crash. The season begins where the second season left off: three of the crash survivors are held in captivity by the mysterious Others. More backstory on the Others, as well as the Dharma Initiative, is revealed. The survivors face continuous threats from their enemies, and also from their friends.

Episode 1 - A Tale of Two Cities
Episode 2 - The Glass Ballerina
Episode 3 - Futher Instructions
Episode 4 - Every Man for Himself
Episode 5 - The Cost of Living
Episode 6 - I Do
Episode 7 - Not in Portland
Episode 8 - Flashes Before Your Eyes
Episode 9 - Stranger in a Strange Land
Episode 10 - Tracia Tanaka is Dead
Episode 11 - Enter 77
Episode 12 - Par Avion
Episode 13 - The Man from Tallahassee
Episode 14 - Expose
Episode 15 - Left Behind
Episode 16 - One of Us
Episode 17 - Catch-22
Episode 18 - D.O.C
Episode 19 - The Brig
Episode 20 - The Man Behind the Curtain
Episode 21 - Greatest Hits
Episode 22 - Through the Looking Glass: part 1
Episode 23 - Through the Looking Glass: part 2

Watch Lost Season 2

Season two introduced several new characters to the series, who include the plane's tail-section survivors and other island inhabitants. More island mythologies and insights into the survivors' pasts are divulged. The existence of the Dharma Initiative and its benefactor, the Hanso Foundation, is established. The truth about the "Others" begins to unfold.

Episode 1 - Man of Science, Man of Faith
Episode 2 - Adrift
Episode 3 - Orientation
Episode 4 - Everybody Hates Hugo
Episode 5 - ...And Found
Episode 6 - Abandonded
Episode 7 - The Other 48 Days
Episode 8 - Collision
Episode 9 - What Kate Did
Episode 10 - The 23rd Psalm
Episode 11 - The Hunting Party
Episode 12 - Fire+Water
Episode 13 - The Long Con
Episode 14 - One of Them
Episode 15 - Maternity Leave
Episode 16 - The Whole Truth
Episode 17 - Lockdown
Episode 18 - Dave
Episode 19 - S.O.S
Episode 20 - Two for the Road
Episode 21 - ? (this is the actual episode name)
Episode 22 - Three Minutes
Episode 23 - Live Together, Die Alone: part 1
Episode 24 - Live Together, Die Alone: part 2

Watch Lost Season 1

Season one begins when a plane crash strands the surviving passengers of Oceanic Flight 815 on a seemingly deserted tropical island, forcing the group of strangers to work together to stay alive. However, their survival is threatened by several mysteries, including the contents of a hatch buried in the ground, an unknown entity that roams the jungle, and the motives of the inhabitants known as the "Others".

Episode 1 - Pilot: part 1
Episode 2 - Pilot: part 2
Episode 3 - Tabula Rasa
Episode 4 - Walkabout
Episode 5 - White Rabbit
Episode 6 - House of the Rising Sun
Episode 7 - The Moth
Episode 8 - Confidence Man
Episode 9 - Solitary
Episode 10 - Raised by Another
Episode 11 - All the Best Cowboys Have Daddy Issues
Episode 12 - Whatever the Case May Be
Episode 13 - Hearts and Minds
Episode 14 - Special
Episode 15 - Homecoming
Episode 16 - Outlaws
Episode 17 - ...In Translation
Episode 18 - Numbers
Episode 19 - Deus Ex Machina
Episode 20 - Do No Harm
Episode 21 - The Greater Good
Episode 22 - Born to Run
Episode 23 - Exodus: part 1
Episode 24 - Exodus: part 2
Episode 25 - Exodus: part 3