Season 1
1. 1-1 100 22-Sep-2004 Pilot (1)
2. 1-2 101 29-Sep-2004 Pilot (2)
3. 1-3 102 06-Oct-2004 Tabula Rasa
4. 1-4 103 13-Oct-2004 Walkabout
5. 1-5 104 20-Oct-2004 White Rabbit
6. 1-6 105 27-Oct-2004 House of the Rising Sun
7. 1-7 106 03-Nov-2004 The Moth
8. 1-8 107 10-Nov-2004 Confidence Man
9. 1-9 108 17-Nov-2004 Solitary
10. 1-10 109 01-Dec-2004 Raised by Another
11. 1-11 110 08-Dec-2004 All the Best Cowboys Have Daddy Issues
12. 1-12 111 05-Jan-2005 Whatever the Case May Be
13. 1-13 112 12-Jan-2005 Hearts and Minds
14. 1-14 113 19-Jan-2005 Special
15. 1-15 114 09-Feb-2005 Homecoming
16. 1-16 115 16-Feb-2005 Outlaws
17. 1-17 116 23-Feb-2005 …In Translation
18. 1-18 117 02-Mar-2005 Numbers
19. 1-19 118 30-Mar-2005 Deus Ex Machina
20. 1-20 119 06-Apr-2005 Do No Harm
Special
S-1 120 27-Apr-2005 Lost: The Journey
Season 1
22. 1-21 121 04-May-2005 The Greater Good (a.k.a. Sides)
23. 1-22 122 11-May-2005 Born to Run
24. 1-23 123 18-May-2005 Exodus (1)
25. 1-24 124 25-May-2005 Exodus (2)
26. 1-25 125 25-May-2005 Exodus (3)