Indizi: stagione 1

1.01 – Pilot part 1 (Jack)
1.02 – Pilot part 2 (Charlie)
1.03 – Tabula Rasa (Kate)
1.04 – La caccia – Walkabout (Locke)
1.05 – Il coniglio bianco – White rabbit (Jack)
1.06 – La casa del Sol Levante – House of the rising sun (Sun)
1.07 – La falena – The moth (Charlie)
1.08 – Il truffatore – Confidence man (Sawyer)
1.09 – Solitudine – Solitary (Sayid)
1.10 – Un figlio – Raised by another (Claire)
1.11 – Inseguimento – All the best cowboys have daddy issues (Jack)
1.12 – Il mistero della valigetta – Whatever the case may be (Kate)
1.13 – Ragione e Sentimento – Hearts and Minds (Boone)
1.14 – Speciale – Special (Michael)
1.15 – Ritorno – Homecoming (Charlie)
1.16 – Fuorilegge – Outlaws (Sawyer)
1.17 – Cambiamenti – In translation (Jin)
1.18 – Numeri – Numbers (Hurley)
1.19 – Deux ex machina (Locke)
1.20 – Non nuocere – Do no harm (Jack)
1.21 – Il bene superiore – The greater good (Sayid)
1.22 – In fuga – Born to run (Kate)
1.23 – Exodus – Part 1 (multi-centric)
1.24-1.25 – Exodus – Part 2-3 (multi-centric)

1.26 – Puntata speciale di fine stagione