Sæson
Episode
- 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
Lost Sæson 1 Do No Harm
Oceanic Flight 815 – et kommercielt fly fra Sydney, Australien til Los Angeles, USA – styrter ned på en tropisk Stillehavsø. De 48 overlevende havner på en ø med mange hemmeligheder, må de holde sammen hvis de nogensinde skal komme hjem i live.
